CN110141369B - An incision protector adapted to small incisions - Google Patents

Abstract

Translated fromChinese

本发明公开了一种适应小切口的切口保护器，其技术方案要点是包括用于形成手术通道的薄膜套管、设置在薄膜套管顶部的外环、设置在薄膜套管底部的置入环，置入环内设置有空腔，置入环内壁设置有用于撑开置入环口径的金属丝，金属丝的一端设置有安装块，安装块固定设置在置入环内壁上，安装块上设置有通孔，金属丝穿过通孔，其安装块套接金属丝形成一个可活动的环形圈，薄膜套管内设置有容纳腔，该容纳腔与置入环的空腔相互贯通，金属丝另一端通过容纳腔进入外环，外环上设置有收卷组件，金属丝伸入外环的一端连接在收卷组件上，收卷组件用于调节环形圈直径大小，本发明的有益效果为方便调节置入环的口径大小，便于置入环伸入切口和取出。

The invention discloses an incision protector suitable for small incisions, the technical solution of which includes a film sleeve for forming a surgical channel, an outer ring arranged on the top of the film sleeve, and an insertion ring arranged at the bottom of the film sleeve , A cavity is arranged in the insertion ring, the inner wall of the insertion ring is provided with a metal wire used to stretch the diameter of the insertion ring, one end of the metal wire is provided with a mounting block, and the installation block is fixedly arranged on the inner wall of the insertion ring, and the mounting block is arranged on the inner wall of the insertion ring. A through hole is provided, the metal wire passes through the through hole, the mounting block is sleeved with the metal wire to form a movable annular ring, and a accommodating cavity is arranged in the film sleeve. The other end enters the outer ring through the accommodating cavity, the outer ring is provided with a winding assembly, the end of the wire extending into the outer ring is connected to the winding assembly, and the winding assembly is used to adjust the diameter of the annular ring. The beneficial effects of the present invention are as follows: It is convenient to adjust the diameter of the placement ring, and it is convenient for the placement ring to be inserted into the incision and taken out.

Description

Incision protector suitable for small incision

Technical Field

The invention relates to an incision protector, in particular to an incision protector suitable for small incisions.

Background

In the case of a surgical laparotomy, when a surgeon opens a surgical site of a patient, the incision is closed due to contraction of tissues. In the past, after the skin of a patient is incised, a doctor would open the incision by using a metal retractor or a drag hook to expose the operation field, but the condition that the pull is excessive to tear the wound or the exposure angle is insufficient often happens. Various incision protectors have been developed for clinical use, usually as an outer ring, an insert ring and a sleeve-like membrane between them. At the present stage, the insertion ring of the incision protector is extended into the incision, the outer ring stays outside the body, so that the purpose of opening the incision is achieved, and a doctor can perform an operation on a patient in an operation channel formed by the sleeve-shaped film. However, the size of the implantation ring of the existing incision protector is fixed, the caliber of the implantation ring cannot be adjusted, in some small-incision operations, the implantation ring needs to be pressed to be contracted and then placed in the incision, and if the operation is not proper, the incision is easy to pull, so that the opening area of the incision is increased, and the time for healing the wound of a patient is prolonged; meanwhile, at the end of the small incision surgery, the implanted ring is difficult to deform, so that the implanted ring is difficult to take out.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the incision protector suitable for the small incision, which is convenient for adjusting the caliber of the implantation ring and facilitating the insertion ring to extend into the incision and take out.

In order to achieve the purpose, the invention provides the following technical scheme: an incision protector adapting to small incision comprises a thin film sleeve for forming an operation channel, an outer ring arranged at the top of the thin film sleeve, an imbedding ring arranged at the bottom of the thin film sleeve, a cavity is arranged in the imbedding ring, a metal wire used for opening the caliber of the imbedding ring is arranged in the cavity, one end of the metal wire is provided with a mounting block which is fixedly arranged on the inner wall of the imbedding ring, the mounting block is provided with a through hole, the metal wire passes through the through hole, the mounting block is sleeved with a metal wire to form a movable annular ring, the film sleeve is internally provided with an accommodating cavity, the containing cavity is communicated with the cavity of the imbedding ring, the other end of the metal wire enters the outer ring through the containing cavity, the winding device is characterized in that a winding assembly is arranged on the outer ring, one end of the metal wire extending into the outer ring is connected to the winding assembly, and the winding assembly is used for adjusting the diameter of the annular ring.

As a further improvement of the invention, the winding assembly comprises a winding drum for winding the metal wire and a driving assembly for driving the winding drum to rotate, a groove with an opening at the upper end is arranged on one surface of the outer ring away from the embedding ring, the groove comprises a bottom plate facing away from the opening side and a first side plate close to one side of the accommodating cavity, the winding drum is rotatably arranged on the bottom plate, a through hole is arranged on the first side plate, one end of the metal wire away from the mounting block passes through the through hole and is connected to the outer peripheral wall of the winding drum, the driving assembly comprises a first toothed ring, a sleeve ring and a second toothed ring, the sleeve ring is sleeved on the outer wall of the outer ring, the groove comprises a second side plate close to one side of the sleeve ring, a through groove is arranged on the second side plate, the first toothed ring is fixedly sleeved on the outer peripheral wall of the winding drum, one side away from the accommodating cavity extends, and the first gear ring is meshed with the first gear ring extending from the through groove, when the lantern ring is rotated, the first gear ring is meshed with the second gear ring to rotate, the winding drum rotates, and the metal wire is wound on the winding drum.

As a further improvement of the invention, the winding assembly further comprises a locking mechanism for locking the winding drum, the locking mechanism comprises an inserting strip and a spring, a limiting hole extending in the radial direction is formed in the peripheral wall of the winding drum, the inserting strip is placed in the limiting hole, one end of the spring is connected to one surface, facing the winding drum, of the second side plate, the other end of the spring is connected to the inserting strip, and the spring keeps the inserting strip extending into the limiting hole.

As a further improvement of the invention, the invention is also provided with an unlocking mechanism for releasing the locking state of the winding drum, the unlocking mechanism comprises a pressing rod which is slidably arranged on the winding drum and a touch block which is arranged on the peripheral wall of the pressing rod, one surface of the winding drum, which is back to the bottom plate, is provided with a containing groove for containing the pressing rod, the pressing rod is slidably connected in the containing groove, a first chute which is communicated with the containing groove extends inwards from the limiting hole, one end of the inserted bar which extends into the winding drum is positioned in the first chute, the side surface of the end part, which corresponds to the sliding direction of the pressing rod, is provided with a first inclined surface for the touch block to touch, when the pressing rod drives the touch block to move along the first chute, the touch block pushes the inserted bar to move towards one side which is separated from the limiting hole along the first inclined surface, and the two sides of the end of the inserted bar which, the second inclined plane is used for contradicting with spacing downthehole wall, when pressing the depression bar to the bottom plate removal along the holding tank, the conflict piece removes along first spout, when conflicting with first inclined plane until the conflict piece, the cutting removes to the second lateral plate, and the spring compression stretches out spacing hole until the second inclined plane, rotates the lantern ring, and first ring gear rotates with the meshing of second ring gear, and the reel rotates, and the second inclined plane is contradicted with spacing downthehole wall, and the spring continues the compression, and the cutting breaks away from spacing hole.

As a further improvement of the invention, a clamping groove is arranged on a section of the pressing rod extending out of the accommodating groove, a cam is rotatably arranged on one surface of the winding drum back to the bottom plate, the cam comprises a protruding part, and when the cam rotates, the protruding part is embedded into the clamping groove to lock the pressing rod.

As a further improvement of the invention, the second side plate is provided with baffle plates at two sides of the cutting slips in the direction of the rotation tangent of the cutting slips relative to the winding drum, and the baffle plates are used for keeping the cutting slips to move linearly.

As a further improvement of the invention, the outer wall of the outer ring is provided with a sliding block, the inner wall of the lantern ring is provided with a second sliding groove for the sliding block to move circumferentially, and the second sliding groove is connected with the sliding block in a sliding manner.

The invention has the beneficial effects that: according to the invention, the metal wire is wound or unfolded through the winding component, so that the diameter of the annular ring can be adjusted, the caliber of the embedded ring is changed, and the application range of the incision protector is enlarged; compared with the prior art, the operation is simple, theimplantation 2 with the reduced caliber is easier to place in or take out of the incision, and the operation difficulty is reduced; in the process of placing the implantation ring, the pulling of the implantation ring to the incision is greatly reduced, and the safety of the operation is improved.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is an internal cross-sectional view of the present invention;

FIG. 3 is an inside view of the insert ring viewed from below;

FIG. 4 is an enlarged view taken at A in FIG. 2;

FIG. 5 is an internal cross-sectional view of the spool in an unlocked condition;

FIG. 6 is a top view of the spool extending out of the position-limiting hole at the second inclined plane.

Reference numerals: 1. an outer ring; 10. a groove; 111. a base plate; 101. a first side plate; 102. a second side plate; 1010. a through hole; 1020. a through groove; 12. a slider; 2. placing a ring; 20. a cavity; 21. mounting blocks; 210. a guide hole; 22. a metal wire; 23. an annular ring; 3. a thin film sleeve; 30. an accommodating chamber; 41. a reel; 410. a limiting hole; 411. accommodating grooves; 412. a first chute; 43. cutting; 431. a first inclined plane; 432. a second inclined plane; 44. a spring; 45. a collar; 450. a second chute; 46. a first ring gear; 47. a second ring gear; 5. a pressing lever; 51. a contact block; 50. a card slot; 6. a baffle plate; 7. a cam; 71. a protrusion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals.

Referring to fig. 1 to 6, the incision protector adapted to a small incision of this embodiment includes athin film sleeve 3 for forming an operation channel, anouter ring 1 disposed on the top of thethin film sleeve 3, and animbedding ring 2 disposed on the bottom of thethin film sleeve 3, wherein acavity 20 is disposed in theimbedding ring 2, ametal wire 22 for expanding the aperture of theimbedding ring 2 is disposed in the cavity, amounting block 21 is disposed at one end of themetal wire 22, themounting block 21 is fixedly disposed on the inner wall of theimbedding ring 2, aguide hole 210 is disposed on themounting block 21, themetal wire 22 passes through theguide hole 210, themounting block 21 is sleeved with themetal wire 22 to form a movableannular ring 23, areceiving cavity 30 is disposed in thethin film sleeve 3, thereceiving cavity 30 is communicated with thecavity 20 of theimbedding ring 2, and the other end of themetal wire 22 enters, theouter ring 1 is provided with a rolling component, one end of themetal wire 22 extending into theouter ring 1 is connected to the rolling component, and the rolling component is used for adjusting the diameter of theannular ring 23.

In this embodiment, the outer ring 1 and the inner ring are used for respectively expanding the upper and lower calibers of the film sleeve 3, the outer ring 1 has no elasticity, the film sleeve 3 is connected on the lower end face of the outer ring 1, the embedded ring 2 is made of an elastic and soft medical polymer material, the metal wire 22 is positioned in the embedded ring 2, the metal wire 22 is hard and smooth and has a memory elasticity function, an annular ring 23 capable of expanding the embedded ring 2 is formed under the state of not being subjected to external force, the calibre of the embedded ring 2 is determined by the diameter of the annular ring 23, when the calibre of the embedded ring 2 needs to be reduced, the end of the metal wire 22 which is not connected with the mounting block 21 is rolled in the rolling assembly through the rolling assembly, the length of the metal wire 22 positioned outside the rolling assembly is reduced, the diameter of the annular ring 23 is reduced, so that the calibre of the embedded ring 2 is reduced, at this time, after the ring 2 incision is placed, the metal wire 22 outside the winding assembly is increased in length again through the winding assembly, the annular ring 23 has an elastic memory function, the diameter of the annular ring 23 is increased again, the caliber of the placed ring 2 is increased, and at the moment, the placed ring 2 is not easy to slide out of the incision, and subsequent operation is not affected.

In the invention, themetal wire 22 is wound or unfolded through the winding component, so that the diameter of theannular ring 23 can be adjusted, the caliber of the embeddedring 2 is changed, and the application range of the incision protector is improved; compared with the prior art, the operation is simple, the placingring 2 with the reduced caliber is easier to place into or take out of the incision, and the operation difficulty is reduced; in the process of placing theimplantation ring 2, the pulling of theimplantation ring 2 to the incision is greatly reduced, and the safety of the operation is improved.

As a modified specific embodiment, the winding assembly includes a winding drum 41 for winding the metal wire 22 and a driving assembly for driving the winding drum 41 to rotate, a face of the outer ring 1 away from the insertion ring 2 is provided with a groove 10 with an upper end opening, the groove 10 includes a bottom plate 111 facing away from the opening side and a first side plate 101 close to one side of the accommodating cavity 30, the winding drum 41 is rotatably disposed on the bottom plate 111, the first side plate 101 is provided with a through hole 1010, one end of the metal wire 22 away from the mounting block 21 passes through the through hole 1010 to be connected to the outer peripheral wall of the winding drum 41, the driving assembly includes a first toothed ring 46, a collar 45 and a second toothed ring 47, the collar 45 is sleeved on the outer wall of the outer ring 1, the groove 10 includes a second side plate 102 close to one side of the collar 45, the second side plate 102 is provided with a through groove 1020, the first toothed ring 46 is fixedly sleeved on the outer peripheral, and the side far away from the accommodating cavity 30 extends out of the through groove 1020, the second toothed ring 47 is arranged on the inner wall of the sleeve and is meshed with the first toothed ring 46 extending out of the through groove 1020, when the lantern ring 45 is rotated, the first toothed ring 46 is meshed with the second toothed ring 47 to rotate, the winding drum 41 rotates, and the metal wire 22 is wound on the winding drum 41.

In this embodiment, the firsttoothed ring 46 is fixedly sleeved on one side of the windingdrum 41 close to thebottom plate 111, one end of themetal wire 22 far away from the mountingblock 21 is connected to the middle of the windingdrum 41, and when the windingdrum 41 needs to be rotated to wind themetal wire 22, thesleeve ring 45 is rotated, so that the secondtoothed ring 47 on the inner wall of thesleeve ring 45 is meshed with the firsttoothed ring 46 on the windingdrum 41 to rotate, the windingdrum 41 rotates, and themetal wire 22 is wound on the windingdrum 41. According to the invention, themetal wire 22 can be wound by rotating thelantern ring 45, the structure is simple, the operation is convenient, thelantern ring 45 is sleeved on theouter ring 1, the size is small, and compared with a handle, the metal wire winding device is not easy to touch accidentally.

As an improved specific embodiment, the winding assembly further includes a locking mechanism for locking the windingdrum 41, the locking mechanism includes aslip 43 and aspring 44, a radially extending limitinghole 410 is provided on an outer circumferential wall of the windingdrum 41, theslip 43 is placed in the limitinghole 410, one end of thespring 44 is connected to a surface of thesecond side plate 102 facing the windingdrum 41, the other end of the spring is connected to theslip 43, and thespring 44 keeps theslip 43 extending into the limitinghole 410.

In the embodiment of the present invention, theinsertion strip 43 is placed in the position-limitinghole 410, and thefirst spring 44 is disposed, so that theinsertion strip 43 is kept moving towards the position-limitinghole 410, and the windingdrum 41 is locked and cannot rotate freely.

As an improved specific embodiment, the locking device is further provided with an unlocking mechanism for unlocking the locked state of the winding drum 41, the unlocking mechanism includes a pressing rod 5 slidably disposed inside the winding drum 41 and a contact block 51 disposed on the peripheral wall of the pressing rod 5, one surface of the winding drum 41 facing away from the bottom plate 111 is provided with an accommodating groove 411 for accommodating the pressing rod 5, the pressing rod 5 is slidably connected in the accommodating groove 411, a first sliding groove 412 penetrating through the accommodating groove 411 is inwardly extended from the limiting hole 410, one end of the insertion strip 43 extending into the winding drum 41 is disposed in the first sliding groove 412, and a first inclined plane 431 for abutting against the contact block 51 is disposed on the side surface of the pressing rod 5 in the sliding direction, when the pressing rod 5 drives the contact block 51 to move along the first sliding groove 412, the contact block 51 pushes the insertion strip 43 to move away from the limiting hole 410 along the first inclined plane 431, and second inclined planes are disposed on two sides of one end of the insertion strip 43 extending into the limiting hole 410 in the tangential direction of the rotation of the winding drum 432, the second inclined plane 432 is used for abutting against the inner wall of the limiting hole 410, when the pressing rod 5 moves towards the bottom plate 111 along the accommodating groove 411, the abutting block 51 moves along the first sliding groove 412 until the abutting block 51 abuts against the first inclined plane 431, the cutting slip 43 moves towards the second side plate 102, the spring 44 is compressed until the second inclined plane 432 extends out of the limiting hole 410, the collar 45 is rotated, the first toothed ring 46 and the second toothed ring 47 are meshed for rotation, the winding drum 41 rotates, the second inclined plane 432 abuts against the inner wall of the limiting hole 410, the spring 44 continues to be compressed, and the cutting slip 43 is separated from the limiting hole 410.

In the present embodiment, in an initial state, the insertion bar 43 extends into the limiting block, and one end of the insertion bar 43 away from the second side plate 102 is located in the first sliding groove 412, the abutting block 51 is located on one side of the insertion bar 43 opposite to the bottom plate 111, when the locking state of the winding drum 41 needs to be released, by pressing the pressing rod 5, the pressing rod 5 and the abutting block 51 respectively move along the accommodating groove 411 and the first sliding groove 412, until the abutting block 51 moves to abut against the first inclined surface 431, the insertion bar 43 moves towards the second side plate 102 along the limiting hole 410, the spring 44 is compressed until the abutting block 51 is separated from the first inclined surface 431, and when the abutting block 51 abuts against the inner wall of the first sliding groove 412, at this time, the pressing rod 5 cannot continue to move downwards, under the elastic force of the spring 44, the abutting block 51 still abuts against the insertion bar 43, the second inclined surface 432 disposed on one end of the insertion bar 43 away from the second side plate 102 extends out of the limiting hole 410, the collar 45 is, the first gear ring 46 and the second gear ring 47 are meshed to rotate to drive the winding drum 41 to rotate, the second inclined surface 432 is abutted against the inner wall of the limiting hole 410, the spring 44 is compressed continuously, the cutting slip 43 is separated from the limiting hole 410, in the rotating process of the winding drum 41, due to the elastic force of the spring 44, the cutting slip 43 still has the moving trend of moving back to the second side plate 102, when the limiting hole 410 rotates to be positioned on one side of the cutting slip 43 along with the winding drum 41, the spring 44 is stretched again, the cutting slip 43 enters the limiting hole 410, at the moment, the lantern ring 45 is rotated continuously, the winding drum 41 rotates, the cutting slip is abutted against the inner wall of the limiting hole 410 through the second inclined surface 432, the spring 44 is compressed again, the cutting slip 43 is separated from the limiting hole 410 again, and the winding drum 41. After rotating for a plurality of circles, when the windingdrum 41 needs to be locked again, theinsertion strip 43 is aligned with the limitinghole 410 again, thespring 44 extends, theinsertion strip 43 enters the limitinghole 410, and then thepressing rod 5 moves back to the direction of theaccommodating groove 411, so that thecontact block 51 on thepressing rod 5 is separated from theinsertion strip 43, thespring 44 continues to extend, theinsertion strip 43 moves towards the first slidinggroove 412, until theinsertion strip 43 again abuts against the inner wall of the first slidinggroove 412, and the locking state is achieved.

According to the unlocking mechanism in the invention, the locking can be released only by manually pressing thepressing rod 5 towards theaccommodating groove 411 by a user, themetal wire 22 can be wound on the windingdrum 41 by rotating the sleeve while keeping thepressing rod 5 pressed, when the locking needs to be re-performed, the insertingstrip 43 is aligned to the limitinghole 410 again, and thepressing rod 5 is moved back to theaccommodating groove 411, so that the structure is simple, the operation is convenient, the unlocking mechanism is arranged in the inner ring, and the shielding of the surgical field of view is reduced.

As a modified embodiment, a section of thepressing rod 5 extending out of the receivingslot 411 is provided with acatch 50, acam 7 is rotatably provided on a side of the windingdrum 41 facing away from thebase plate 111, thecam 7 includes aprotrusion 71, and when thecam 7 rotates, theprotrusion 71 is inserted into thecatch 50 to lock thepressing rod 5.

In the embodiment, when the locking state is released by pressing thepressing rod 5, the secondinclined surface 432 extends out of the limitinghole 410, the clampinggroove 50 arranged on thepressing rod 5 and thecam 7 are positioned on the same plane, thecam 7 is rotated, so that the protrudingpart 71 is embedded into the clampinggroove 50, thepressing rod 5 can be locked, and a user can rotate thelantern ring 45 by one hand to wind themetal wire 22 without pressing thepressing rod 5 at the same time, thereby improving the convenience of the invention.

As a modified specific embodiment, thesecond side plate 102 is provided with abaffle 6 at two sides of the cuttingslip 43 in the direction tangential to the rotation of thedrum 41, and thebaffles 6 are used for keeping the cuttingslip 43 to move linearly.

Through the technical scheme, the insertingbar 43 is located between the twobaffles 6 and is abutted against thebaffles 6, and through the arrangement of thebaffles 6, when the insertingbar 43 is in the state of locking the windingdrum 41, the situation that the windingdrum 41 is easy to rotate due to the flexibility of thespring 44 is avoided, and the effect of locking the windingdrum 41 by thelocking inserting bar 43 is improved.

As a modified specific embodiment, the outer wall of theouter ring 1 is provided with a slidingblock 12, the inner wall of thecollar 45 is provided with a second slidinggroove 450 for circumferential movement of the slidingblock 12, and the second slidinggroove 450 is slidably connected with the slidingblock 12.

Through the above technical scheme, by providing the second slidinggroove 450 and the slidingblock 12, thelantern ring 45 can rotate relative to theouter ring 1, and thelantern ring 45 is not easily separated from theouter ring 1 when thefirst gear ring 46 and thesecond gear ring 47 are always in a meshed state.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (6)

Translated fromChinese

1.一种适应小切口的切口保护器，其特征在于：包括用于形成手术通道的薄膜套管(3)、设置在薄膜套管(3)顶部的外环(1)、设置在薄膜套管(3)底部的置入环(2)，所述置入环(2)内设置有空腔(20)，所述空腔(20)内设置有用于撑开置入环(2)口径的金属丝(22)，所述金属丝(22)的一端设置有安装块(21)，所述安装块(21)固定设置在置入环(2)内壁上，所述安装块(21)上设置有引导孔(210)，所述金属丝(22)穿过引导孔(210)，其安装块(21)套接金属丝(22)形成一个可活动的环形圈(23)，所述薄膜套管(3)内设置有容纳腔(30)，该容纳腔(30)与置入环(2)的空腔(20)相互贯通，所述金属丝(22)另一端通过容纳腔(30)进入外环(1)，所述外环(1)上设置有收卷组件，所述金属丝(22)伸入外环(1)的一端连接在收卷组件上，所述收卷组件用于调节环形圈(23)直径大小；1. An incision protector adapted to a small incision is characterized in that: comprising a thin film sleeve (3) for forming a surgical channel, an outer ring (1) arranged on the top of the thin film sleeve (3), a thin film sleeve An insertion ring (2) at the bottom of the tube (3), a cavity (20) is arranged in the insertion ring (2), and a diameter of the insertion ring (2) is provided in the cavity (20) for opening the insertion ring (2). The metal wire (22) of the metal wire (22), one end of the metal wire (22) is provided with a mounting block (21), the mounting block (21) is fixedly arranged on the inner wall of the insertion ring (2), and the mounting block (21) A guide hole (210) is provided on the upper part, the wire (22) passes through the guide hole (210), and the mounting block (21) is sleeved with the wire (22) to form a movable annular ring (23). The film sleeve (3) is provided with an accommodating cavity (30), the accommodating cavity (30) communicates with the cavity (20) of the insertion ring (2), and the other end of the metal wire (22) passes through the accommodating cavity (20). 30) Enter the outer ring (1), the outer ring (1) is provided with a winding assembly, the end of the wire (22) extending into the outer ring (1) is connected to the winding assembly, and the winding assembly is The assembly is used to adjust the diameter of the annular ring (23);所述收卷组件包括用于收卷金属丝(22)的卷筒(41)以及驱动卷筒(41)转动的驱动组件，所述外环(1)远离置入环(2)的一面上设置有上端开口的凹槽(10)，所述凹槽(10)包括背向开口侧的底板(111)和靠近容纳腔(30)一侧的第一侧板(101)，所述卷筒(41)转动设置在底板(111)上，所述第一侧板(101)上设置有通孔(1010)，所述金属丝(22)远离安装块(21)的一端穿过通孔(1010)连接在卷筒(41)的外周壁上，所述驱动组件包括第一齿环(46)、套环(45)以及第二齿环(47)，所述套环(45)套设在外环(1)的外壁上，所述凹槽(10)包括靠近套环(45)一侧的第二侧板(102)，所述第二侧板(102)上设置有通槽(1020)，所述第一齿环(46)固定套设在卷筒(41)的外周壁上，且远离容纳腔(30)的一侧从通槽(1020)中伸出，所述第二齿环(47)设置在套管内壁上，与从通槽伸出的第一齿环(46)啮合，当转动套环(45)时，第一齿环(46)与第二齿环(47)啮合转动，卷筒(41)转动，金属丝(22)收卷于卷筒(41)上。The winding assembly includes a reel (41) for winding the wire (22) and a drive assembly for driving the reel (41) to rotate, and the outer ring (1) is on the side away from the placement ring (2). A groove (10) with an open upper end is provided, and the groove (10) includes a bottom plate (111) facing away from the side of the opening and a first side plate (101) close to the side of the accommodating cavity (30). (41) It is rotatably arranged on the bottom plate (111), the first side plate (101) is provided with a through hole (1010), and the end of the wire (22) away from the mounting block (21) passes through the through hole ( 1010) is connected to the outer peripheral wall of the drum (41), the drive assembly includes a first toothed ring (46), a collar (45) and a second toothed ring (47), the collar (45) is sleeved On the outer wall of the outer ring (1), the groove (10) includes a second side plate (102) close to the side of the collar (45), and a through groove (102) is provided on the second side plate (102). 1020), the first toothed ring (46) is fixedly sleeved on the outer peripheral wall of the drum (41), and the side away from the accommodating cavity (30) protrudes from the through groove (1020), the second The toothed ring (47) is arranged on the inner wall of the sleeve and meshes with the first toothed ring (46) protruding from the through groove. When the sleeve (45) is rotated, the first toothed ring (46) and the second toothed ring (46) 47) Engage and rotate, the reel (41) rotates, and the wire (22) is wound on the reel (41).2.根据权利要求1所述的一种适应小切口的切口保护器，其特征在于：所述收卷组件还包括用于锁定卷筒(41)的锁定机构，所述锁定机构包括插条(43)和弹簧(44)，所述卷筒(41)的外周璧上设置有向径向延伸的限位孔(410)，所述插条(43)放置于限位孔(410)内，所述弹簧(44)一端连接在第二侧板(102)面向卷筒(41)的一面上，另一端连接在插条(43)上，所述弹簧(44)保持插条(43)伸入限位孔(410)内。2. A notch protector adapted to a small notch according to claim 1, characterized in that: the winding assembly further comprises a locking mechanism for locking the reel (41), and the locking mechanism comprises an insert ( 43) and a spring (44), a limit hole (410) extending radially is provided on the outer peripheral wall of the drum (41), and the insert (43) is placed in the limit hole (410), One end of the spring (44) is connected to the side of the second side plate (102) facing the reel (41), and the other end is connected to the insert (43), the spring (44) keeps the insert (43) extending. into the limiting hole (410).3.根据权利要求2所述的一种适应小切口的切口保护器，其特征在于：还设置有用于解除卷筒(41)的锁定状态的解锁机构，所述解锁机构包括滑动设置在卷筒(41)上的按压杆(5)和设置在按压杆(5)外周壁上的抵触块(51)，所述卷筒(41)背向底板(111)的一面上设置有容纳按压杆(5)的容纳槽(411)，所述按压杆(5)滑动连接在容纳槽(411)内，所述限位孔(410)向内延伸有与容纳槽(411)贯通的第一滑槽(412)，所述插条(43)伸入卷筒(41)的一端位于第一滑槽(412)内，且端部对应在按压杆(5)滑移方向上的侧面设置有供抵触块(51)抵触的第一斜面(431)，当按压杆(5)带动抵触块(51)沿第一滑槽(412)移动时，抵触块(51)沿第一斜面(431)推动插条(43)向脱离限位孔(410)一侧移动，所述插条(43)伸入限位孔(410)一端在相对卷筒(41)转动切线方向上的两侧设置有第二斜面(432)，所述第二斜面(432)用于与限位孔(410)内壁抵触，当按压杆(5)沿容纳槽(411)向底板(111)移动时，抵触块(51)沿第一滑槽(412)移动，直至抵触块(51)与第一斜面(431)抵触时，插条(43)向第二侧板(102)移动，弹簧(44)压缩，直至第二斜面(432)伸出限位孔(410)，转动套环(45)，第一齿环(46)与第二齿环(47)啮合转动，卷筒(41)转动，第二斜面(432)与限位孔(410)内壁抵触，弹簧(44)继续压缩，插条(43)脱离限位孔(410)。3. An incision protector adapted to a small incision according to claim 2, characterized in that: an unlocking mechanism for releasing the locked state of the reel (41) is further provided, and the unlocking mechanism comprises a sliding arrangement on the reel (41). The pressing rod (5) on (41) and the abutting block (51) arranged on the outer peripheral wall of the pressing rod (5), the side of the drum (41) facing away from the bottom plate (111) is provided with an accommodating pressing rod ( 5) the accommodating groove (411), the pressing rod (5) is slidably connected in the accommodating groove (411), and the limiting hole (410) extends inwardly with a first chute that communicates with the accommodating groove (411). (412), one end of the insert strip (43) extending into the reel (41) is located in the first chute (412), and the side of the end corresponding to the sliding direction of the pressing rod (5) is provided with a countermeasure for interference The first slope (431) against which the block (51) collides, when the pressing rod (5) drives the resistance block (51) to move along the first chute (412), the resistance block (51) pushes the insert along the first slope (431). The strip (43) moves to the side away from the limiting hole (410), and one end of the inserting strip (43) extending into the limiting hole (410) is provided with second The inclined surface (432), the second inclined surface (432) is used to interfere with the inner wall of the limiting hole (410), when the pressing rod (5) moves toward the bottom plate (111) along the accommodating groove (411), the interference block (51) Move along the first chute (412) until the contact block (51) collides with the first slope (431), the insert (43) moves toward the second side plate (102), and the spring (44) compresses until the second side plate (102) is compressed. The inclined surface (432) protrudes from the limit hole (410), the collar (45) is rotated, the first toothed ring (46) and the second toothed ring (47) are engaged and rotated, the reel (41) is rotated, and the second inclined surface (432) ) collides with the inner wall of the limiting hole (410), the spring (44) continues to compress, and the insert (43) is separated from the limiting hole (410).4.根据权利要求3所述的一种适应小切口的切口保护器，其特征在于：所述按压杆(5)伸出容纳槽(411)的一段设置有卡槽(50)，所述卷筒(41)背向底板(111)的一面上转动设置有凸轮(7)，所述凸轮(7)包括突出部(71)，当凸轮(7)转动，突出部(71)嵌入卡槽(50)锁定按压杆(5)。4. A notch protector adapted to a small notch according to claim 3, characterized in that: a section of the pressing rod (5) extending out of the accommodating groove (411) is provided with a clamping groove (50), and the roll A cam (7) is rotatably provided on the side of the cylinder (41) facing away from the bottom plate (111), and the cam (7) includes a protruding part (71). 50) Lock the push lever (5).5.根据权利要求2所述的一种适应小切口的切口保护器，其特征在于：所述第二侧板(102)在插条(43)相对卷筒(41)转动切线方向上的两侧设置有挡板(6)，所述挡板(6)用于保持插条(43)直线移动。5. A notch protector adapted to a small notch according to claim 2, characterized in that: the two sides of the second side plate (102) in the tangential direction of the rotation of the insert (43) relative to the reel (41) A baffle (6) is provided on the side, and the baffle (6) is used to keep the cutting strip (43) moving in a straight line.6.根据权利要求1所述的一种适应小切口的切口保护器，其特征在于：所述外环(1)的外壁上设置有滑块(12)，所述套环(45)内壁上设置有供滑块(12)周向移动的第二滑槽(450)，所述第二滑槽(450)与滑块(12)可滑动连接。6. A notch protector adapted to a small notch according to claim 1, characterized in that: a slider (12) is provided on the outer wall of the outer ring (1), and a slider (12) is arranged on the inner wall of the collar (45) A second sliding groove (450) for the sliding block (12) to move in the circumferential direction is provided, and the second sliding groove (450) is slidably connected with the sliding block (12).

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