WO2017045182A1 - 用于切除组织的刀头 - Google Patents

用于切除组织的刀头 Download PDF

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Publication number
WO2017045182A1
WO2017045182A1 PCT/CN2015/089818 CN2015089818W WO2017045182A1 WO 2017045182 A1 WO2017045182 A1 WO 2017045182A1 CN 2015089818 W CN2015089818 W CN 2015089818W WO 2017045182 A1 WO2017045182 A1 WO 2017045182A1
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WIPO (PCT)
Prior art keywords
cutter
blade
edge
tissue
pressure plate
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PCT/CN2015/089818
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English (en)
French (fr)
Inventor
陈国斌
李安
Original Assignee
深圳市鼎善医疗科技有限公司
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Application filed by 深圳市鼎善医疗科技有限公司 filed Critical 深圳市鼎善医疗科技有限公司
Priority to CN201580081337.2A priority Critical patent/CN107735037B/zh
Priority to PCT/CN2015/089818 priority patent/WO2017045182A1/zh
Publication of WO2017045182A1 publication Critical patent/WO2017045182A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments

Definitions

  • the present invention relates to a cutter head for resecting tissue, and more particularly to a cutter head capable of excising glandular tissue for treatment of malodor.
  • Underarm odor is a condition characterized by an unpleasant odor in the armpit. It is a common hereditary skin metabolic disease with a high incidence, mainly due to the excretion of sweat from the apocrine glands. The main bacteria break down and produce unsaturated fatty acids. The odor can seriously affect the patient's communication with the surrounding population, and surgical treatment is the only way to completely eradicate the odor.
  • the method aims to remove the apocrine gland, which is made into a fusiform incision along the growth area of the mane, the incision is deep to the dermis and the skin is separated by a knife to reach the edge of the bristle, and the entire skin with the bristles is removed, and finally the incision is made. .
  • This method is too much for skin resection, the suture tension is large, and it is easy to cause all or part of the incision to be fissure. In the later stage, it is easy to cause scar contracture and affect upper limb activity.
  • the method designs a fusiform incision according to the distribution range of the bristles, and cuts the whole skin layer and the subcutaneous fat layer along the incision line.
  • a z-shaped triangular flap is designed in the middle of the incision, and the suture is evenly sutured. This method still forms obvious scars after surgery, which affects the appearance.
  • the method is to make a transverse incision along the edge of the armpit region at the edge of the iliac crest, and use the tissue scissors to separate the dermis and subcutaneous fat layer until the armpit region is completely separated. After separation, the subcutaneous sweat gland is trimmed by using the tissue shear multiple times to move evenly. Hair follicles, until the visible sweat glands and hair follicles overflow from the incision, then use the spatula to scrape evenly in the direction of the fan, until the dermis changes from rough to smooth, scrape the removed mixed tissue particles, and finally rinse with saline Separate the lumen and complete the main surgical procedure.
  • the method has no obvious axillary fossa Trace, beautiful appearance, but has a large workload for the operating doctor, peers, the doctor's operational skills are higher, doctors cut or scrape, the amount of tissue removal is difficult to grasp, excessive removal can easily lead to skin Skin necrosis after cutting or postoperative, too little removal leads to poor surgical results.
  • the present invention provides a new cutter head for resecting tissue.
  • the present invention provides a cutter head for cutting tissue, including an outer cutter and capable of opposing the outer
  • an inner blade of a knife movement the outer blade being a tubular body penetrating back and forth in the axial direction, the pipe wall of the outer blade having at least one mouth, the edge of the mouth forming an outer shearing edge,
  • the outer peripheral surface of the front portion of the inner blade has a rib and a groove, the rib forming an inner shearing edge, the outer blade encasing the front portion of the inner blade, the inner shearing edge being exposed to the cornice and
  • the outer shearing edge is sheared, the inner knife is moved, and the tissue is cut by the shear fit; the tissue can fall into the groove and be transported to the outside of the cutter head.
  • the inner blade may not be provided to transport the channel from which the tissue is cut, that is, the inner blade may be a solid body.
  • the outer knife may have one or more jaws, and the edges of each jaw may form an outer shear edge.
  • the cornice may be a quadrilateral, such as a parallelogram.
  • the inner knife can reciprocate or reciprocate relative to the outer knife.
  • the inner and outer knives can be coaxial.
  • the front portion of the inner knife is nested into the lumen of the outer knife, and the rear portion of the inner knife can protrude rearward from the lumen of the outer knife.
  • the inner blade front portion is a screw, the screw has the rib and the groove, the rib and
  • the grooves are each spiral, and the inner blade is reciprocally rotatable about the axis with respect to the outer blade.
  • the screw may be a single-headed screw or a multi-headed screw.
  • the screw is rotated about the axis, and the inner and outer shearing edges are sheared to remove the tissue.
  • the tissue is resected and the cut tissue can be transported along the spiral groove to the back of the inner blade.
  • the rib and the groove are distributed in the axial direction, and the inner blade can be opposite to the
  • the outer blade reciprocates in the axial direction.
  • the ribs and the grooves may each have a plurality of independently arranged, and the ribs and the grooves are spaced apart from each other.
  • the tissue cut by the inner edge of the rib may fall into the groove adjacent the rib.
  • the outer blade is a tubular body having a triangular cross section, and the inner blade has a trapezoidal cross section,
  • the inner shearing edge reciprocates against the wall of the outer knife.
  • the cross section of the outer knife can also be square, round Shape and other shapes.
  • the outer shearing edges may have two parallel to each other.
  • the cutter head further includes a handle and a power source, and the power source is fixed to the handle,
  • a power source is coupled to the rear of the inner knife and drives the inner knife motion.
  • the power source can be an electric motor or a power cylinder or the like.
  • the power source can be directly connected to the inner knife or connected to the inner knife through a shifting mechanism.
  • the power source can drive the inner cutter to rotate about the axis or drive the inner cutter to move along the axis.
  • the cutter head further includes an outer pressure plate and an outer pressure plate link, the rear portion of the outer pressure plate link and the
  • the handle is rotatably connected, the front portion of the outer pressure plate link is rotatably connected to the outer pressure plate, and the outer pressure plate is aligned with the mouth.
  • the outer pressure plate presses the tissue to be excised into the lumen of the outer knife through the fistula of the outer knife.
  • the axis of rotation of the outer platen link may be parallel to the axis of rotation of the outer platen and the axis of rotation may be perpendicular to the axis of the bit.
  • the cutter head further includes a height adjustment ring and a cutter head connecting rod, and the cutter head connecting rod connecting station
  • a rear portion of the handle and the outer cutter, the outer pressure plate link has a bottom surface facing the outer cutter, the height adjustment ring is sandwiched between the bottom surface and the cutter connecting rod, and the bottom surface It is a slope.
  • the outer shearing edge is parallel to the axis, and the inner shearing edge has an angle with the axis.
  • the inner and outer shear edges may each have an angle with the axis.
  • the pipe wall of the rear portion of the outer blade has a through hole penetrating therethrough. In the direction of the axis, the mouth is in the pass
  • a cutter head for deodorizing treatment comprising an outer knife and an inner knife, the outer knife being on the axis side
  • a tubular body that penetrates forward and backward the wall of the outer blade has at least one mouth, the edge of the mouth forms an outer shearing edge, the front part of the inner blade is a screw, and the screw has a spiral a threaded rib and a spiral groove, the edge of the rib forming an inner shearing edge, the outer cutter encasing the screw, the inner shearing edge being exposed to the mortise and the outer shear a cutting edge shear fit, the inner knife rotates ⁇ , the gland tissue is excised by the shear fit, and the cut gland tissue falls into the screw groove and can be transported to the cutter head along the screw groove The back.
  • a cutter head for deodorant treatment comprising an outer cutter and an inner cutter, the outer cutter being on the axis side
  • a tubular body that penetrates forward and backward, the wall of the outer blade has at least one weir, the edge of the weir forms an outer shearing edge, and the outer peripheral surface of the inner blade has a phase distribution in the axial direction Ribs and grooves, An edge of the rib forms an inner shearing edge, the outer blade encloses the inner blade and forms a movement ⁇
  • the outer shearing edge is parallel to the axis, and each of the inner shearing edges is parallel and has an acute angle with the axis.
  • the beneficial effects of the present invention are as follows: 1) The inner and outer shearing edges are shear-fitted, and the inner knife can be moved relative to the outer knife, which can achieve continuous cutting, thereby effectively improving the surgical effect and reducing the labor intensity of the doctor. 2) External pressure plate at the outer knife mouth can limit the skin shear thickness, avoid skin peeling or post-operative skin necrosis due to excessive tissue removal, or remove too little tissue, resulting in poor surgical results, making surgery safer. Fast and reliable.
  • FIG. 1 is a perspective cross-sectional view of a cutter head for cutting tissue in the embodiment
  • FIG. 2 is an exploded perspective view of the outer blade and the inner blade of the present embodiment before assembly; [0049] FIG.
  • FIG. 3 is a cross-sectional view of the outer blade and the inner blade of the embodiment after assembly
  • FIG. 4 is a front view of the outer blade and the inner blade of the present embodiment after assembly; [0051] FIG.
  • Figure 5 is a cross-sectional view of the embodiment
  • FIG. 6 is a cross-sectional view of the outer blade and the inner blade of the second embodiment after assembly
  • FIG. 7 is an exploded perspective view of the outer blade and the inner blade of the second embodiment before assembly; [0054] FIG.
  • FIG. 8 is an exploded perspective view of the outer blade and the inner blade of the third embodiment before assembly.
  • a cutter head for cutting tissue includes an outer cutter 3 and an inner cutter 2 movable relative to the outer cutter 3.
  • the outer blade 3 is a tubular body axially penetrating in the axial direction, and the tube wall 36 has at least one radially penetrating port 33 which communicates with the lumen 37 of the outer blade 3, the edge of which is formed Sharp outer cutting edge 34.
  • the inner blade 2 has a front portion and a rear portion, and the outer peripheral surface of the front portion has a rib 23 and a groove 24, and the edge of the rib 23 forms a sharp inner shearing edge 26.
  • the front portion of the inner knife 2 is inserted into the outer knife lumen 37, that is, the outer knife 3 is sleeved At the front of the inner knife 2, the inner shearing edge 26 is exposed in the jaw 33 and the inner shearing edge 26 is shear-engaged with the outer shearing edge 34.
  • the tissue to be excised is pressed into the lumen 37 from the fistula 33 of the outer knife 3; then, the cutting operation is started to move the inner knife 2, and the inner shearing edge 26 and the outer shearing edge 34 are sheared.
  • the tissue is excised with a cut fit, and the excised tissue falls into the recess 24;
  • the transport operation is initiated, and the tissue in the recess 24 is transported to the outside of the outer blade 3, i.e., to the outside of the cutter head.
  • the cutting operation can be performed prior to the shipping operation, and the shipping operation can also be performed in the same manner as the cutting operation.
  • the tissue in the groove 24 can be transported to the rear of the outer blade 3 lumen and then to the outside of the outer blade 3.
  • the tube wall 36 at the rear of the outer blade has a radially penetrating through hole 35 through which tissue within the groove can be transported to the outside of the outer blade.
  • the inner blade 2 has a through hole 35 extending therethrough, and there is a gap between the inner knife 2 and the outer knife 3 through which the tissue in the groove 24 passes. 35 enters the lumen 37 of the outer blade and is carried by the lumen to the outside of the outer blade 3.
  • the outer shearing edge 34 and the inner shearing edge 26 may have an included angle to shear fit the inner and outer shearing edges.
  • the inner cutter 2 can be matched with the outer cutter 3 such that the inner shearing edge 26 of the inner cutter can reciprocate or reciprocate against the wall 36 of the outer cutter during which the inner shearing edge and the outer shearing are performed.
  • the blade is sheared to achieve the removal of the tissue.
  • the cutter head for cutting tissue may further include an outer pressure plate 1, an outer pressure plate link 15, and a handle 17.
  • a power source 12 is fixed in the handle 17, and the power source 12 is coupled to the rear portion of the inner blade 2 to drive the inner blade 2 to move.
  • the rear portion of the outer pressure plate connecting rod 15 is rotatably connected to the handle 17, the front portion of the outer pressure plate connecting rod 15 is rotatably connected to the outer pressure plate 1, and the outer pressure plate 1 is located directly above the outer knife opening 33, and the tissue to be cut can be self-pressed by the outer pressing plate.
  • the fistula 33 is pressed into the lumen 37 of the outer blade to facilitate the removal of the tissue by the inner and outer shear blades.
  • the outer pressure plate 1 has a snoring position and a closing position. In the snoring position, the outer pressure plate link 15 and the outer knife 3 have a larger angle, so that the tissue to be cut is aligned with the cutter head; in the closed position, The platen link 15 is parallel to the outer blade 3 such that the outer platen 1 presses the tissue to be cut.
  • a height adjustment ring 11 may be provided, and the height adjustment ring 1 1 may cover the outer blade 3, and the bottom surface 18 of the outer pressure plate presses the height adjustment ring 11.
  • the bottom surface 18 of the outer pressure plate may be The bevel, the height adjustment ring 11 is moved to achieve the adjustment of the above pitch.
  • the cutter head is used to cut gland tissue in a sputum treatment, which includes a relatively stationary outer knife 3, and an outer cutter 3 coaxially and capable of
  • the inner cutter 2 that rotates relative to the outer cutter can transmit the power of the power source 12 to the linkage rod 4 of the inner cutter 2, and the linkage rod 4 is connected to the inner cutter 2 through the coupling 10.
  • the power source 12 is an electric motor.
  • the outer blade 3 is a thin-walled circular tubular body having at least one port 33 on its wall, the edge of which forms a sharp outer shearing edge 34.
  • the cornice is square in shape and has two outer shearing edges 34 that are parallel to each other, and the outer shearing edge 34 can be parallel to the axis.
  • the wall of the rear portion of the outer blade has a through hole 35 that penetrates radially.
  • the front opening of the outer knife lumen 37 can be closed by the closure 38.
  • the inner blade 2 has a front portion and a rear portion, and the front portion is a screw 25 having a spiral spiral rib and a spiral groove extending in the axial direction, and the edge of the spiral rib is formed. Sharp inner cutting edge 26.
  • the spiral rib phase corresponds to the above rib 23, and the groove corresponds to the groove 24.
  • the outer blade 3 is coaxially assembled with the inner blade 2, and when the outer blade 3 is relatively stationary and the inner blade 2 is continuously rotated about the axis, the outer cutting edge of the outer blade 3 is the same as that of the inner blade 2.
  • the inner shearing edge shear fits to form a continuous shearing effect.
  • the outer pressure plate 1 is located above the outer knife 3 port 33 and is capable of adjusting and restraining the minimum distance of the outer pressure plate 1 and the engaged outer shearing blade 34 by the height adjusting ring 11.
  • the outer pressure plate 1 is rotatably connected to the front portion of the outer pressure plate link 15 via the rotating shaft 19, and the rear portion of the outer pressure plate connecting rod 15 is rotatably connected to the handle 17 through the connecting shaft 13, and can be connected with the shaft.
  • 13 is a shaft rotation
  • the height adjustment ring 11 can be moved back and forth along the cutter head connecting rod 14, and the outer pressure plate link 15 is rotated and closed along the connecting shaft 13, and is restrained by the height adjustment ring 11 and cannot be continuously closed, thereby ensuring the outer pressure plate.
  • the rear portion of the cutter head connecting rod 14 is fixed to the handle 17, and the front portion of the cutter head connecting rod 14 is fixed to the rear portion of the outer cutter 3.
  • the cutter head connecting rod 14 may be a tubular body that axially penetrates in the axial direction, and the linkage rod 4 traverses the cutter head connecting rod 14.
  • the patient confirms the amount of dermis and subcutaneous tissue that needs to be removed by the doctor prior to surgery and derives the thickness of the skin to be retained after resection.
  • the swelling of the surgical area is performed first, the micro-invasion is performed under the armpit, and the subcutaneous tissue is separated.
  • the front portion of the inner blade 2 has a spiral structure, and the cut tissue can be automatically conveyed to the rear portion of the cutter head.
  • the outer blade 21 is a tubular tube of other shapes, such as a tubular body having a triangular cross section.
  • the outer wall of the outer knife has at least one rake 33, and the wall of the rake has the same distance from the axis A.
  • the inner cutter 20 cooperates with the outer cutter 21, and the outer peripheral surface of the inner cutter has a plurality of ribs 23 and grooves 24 which are distributed in the direction of the axis A, and the edges of the ribs 23 form a sharp inner shearing edge.
  • the outer shearing edge of the outer blade 21 and the inner shearing edge of the inner blade 20 are not parallel, the outer blade 21 is relatively stationary, and the inner blade 20 reciprocates linearly in the direction of the axis A to achieve a continuous shearing effect.
  • the inner knife also has a radially through through hole 35 that communicates with the lumen 37 of the outer blade. Under the action of the negative pressure, the tissue in the groove can enter the lumen 37 of the outer blade through the through hole 35, and is then transported to the outside of the outer knife.
  • the outer shearing edge 34 may be parallel to the axis A, and the inner shearing edge of the rib 23 may be aligned with the axis
  • A has an angle that is an acute angle.
  • the outer shearing edge of the outer blade 31 can be aligned in the coaxial direction, and the inner shearing edge of the inner blade 30 is correspondingly changed to achieve the same shearing. Cut the effect.
  • a cutter head for resecting tissue it includes an outer knife and an inner knife.
  • the outer knives are tubular bodies with at least one cornice on the wall and a sharp outer cutting edge at the edge of the cornice.
  • the front portion of the inner knife may have a screw, and the outer edge of the screw has a sharp inner cutting edge.
  • the inner and outer knives are coaxially assembled, the inner knives are rotated or moved by the power source, and the relatively stationary outer knives and the relatively moving inner knives mesh and form a continuous shearing action.
  • the cutter head may further comprise an outer pressure plate, and the outer pressure plate presses the tissue to be excised into the inner and outer shear edges through the mouth of the outer knife for cutting.
  • the minimum distance between the outer platen and the intermeshing shearing edge can be adjusted and limited to ensure that the tissue to be resected is not sheared after being sheared to the desired thickness.
  • the outer pressure plate can be omitted in some cases.
  • an experienced doctor can press the extracorporeal tissue by hand and press the tissue to be excised into the cutting edge to complete the tissue shear.
  • the present invention belongs to a minimally invasive surgical instrument, which can realize the placement of the cutter head into the dermis through the underarm underarm incision hole Below the tissue, continuous cutting of the apocrine gland in the dermis tissue achieves the purpose of completely removing the apocrine glands, improving the surgical treatment effect, reducing the scar of the odorless operation, reducing the work intensity of the deodorant surgeon, and avoiding the operation. Complications of skin shearing and post-operative skin necrosis improve the experience of doctors and patients.

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Abstract

一种用于切除组织的刀头，包括外刀（3）和能够相对所述外刀（3）运动的内刀（2），所述外刀（3）是在轴线方向前后贯通的管状体，所述外刀（3）的管壁（36）具有至少一个开口（33），所述开口（33）的边缘形成外剪切刃（34），所述内刀（2）前部的外周面具有凸棱（23）和凹槽（24），所述凸棱（23）形成内剪切刃（26），所述外刀（3）套住所述内刀（2）前部，所述内剪切刃（26）暴露于所述开口（33）并与所述外剪切刃（34）剪切配合。内、外剪切刃（26、34）剪切配合，内刀（2）可以相对外刀（3）运动，能够实现连续剪切，从而能够有效提高手术效果，降低医生的劳动强度，同时避免因去除组织过多导致皮肤剪穿或术后皮肤坏死，或去除组织过少导致手术效果不佳，使手术更加安全、快捷、美观、可靠。

Description

说明书 发明名称:用于切除组织的刀头
技术领域
[0001] 本发明是关于一种用于切除组织的刀头， 尤其是关于一种用于腋臭治疗的能够 切除腺体组织的刀头。
[0002]
[0003] 背景技术
[0004] 腋臭是腋窝产生一种难闻的气味为特征的病症， 它是一种常见的遗传性皮肤 代谢性疾病， 具有较高的发病率， 主要是大汗腺排泄的汗液受到以葡萄球菌为 主的细菌分解， 产生不饱和脂肪酸所致。 腋臭会严重影响患者与周围人群的交 际， 而手术治疗则是目前彻底根治腋臭的唯一方法。
[0005] 目前通过手术治疗腋臭主要有如下几种：
[0006] 1.有毛区单纯梭形切除法
[0007] 该方法目标是切除大汗腺， 其沿着腋毛成长区作梭形切口， 切口要深达真皮 并用刀分离皮肤， 以到达腋毛边沿为止， 将长有腋毛的皮肤全体切除， 最后缝 合切口。 此方法因皮肤切除过多， 缝合张力大， 容易造成切口全部或部分裂幵 ， 后期也容易导致瘢痕挛缩， 影响上肢活动。
[0008] 2.梭形切除 Z形成形法
[0009] 该方法是根据腋毛分布范围设计梭形切口， 沿切口线切除皮肤全层及皮下脂 肪层， 为避免切口直线瘢痕挛缩， 在切口中段设计 z形三角瓣， 对偶缝合。 该方 法术后仍形成明显疤痕， 从而影响外观。
[0010] 3.剥离刮除法
[0011] 该方法是沿腋毛区域边缘靠腋后线处做一横向切口， 并用组织剪分离真皮及皮 下脂肪层， 直至腋毛区域全部分离， 分离后， 使用组织剪多次均匀移动修剪皮 下汗腺及毛囊， 直至可见汗腺及毛囊组织自切口溢出， 之后采用刮勺沿扇形方 向多次均匀搔刮， 直至真皮由毛糙颗粒感变为较光滑， 将切除的混合组织颗粒 刮出， 最后用生理盐水冲洗分离腔， 完成主要手术过程。 该方法腋窝无明显疤 痕， 外形美观， 但对操作医生有较大的工作量， 同吋， 对医生的操作技能要求 较高， 医生剪切或者搔刮吋， 对组织去除量不易把握， 去除过多极易导致皮肤 剪穿或术后皮肤坏死， 去除过少则导致手术效果不佳。
[0012] 发明内容
[0013] 本发明提供一种新的用于切除组织的刀头。
[0014] 本发明提供一种用于切除组织的刀头， 包括外刀和能够相对所述外
[0015] 刀运动的内刀， 所述外刀是在轴线方向前后贯通的管状体， 所述外刀的管壁具 有至少一个幵口， 所述幵口的边缘形成外剪切刃， 所述内刀前部的外周面具有 凸棱和凹槽， 所述凸棱形成内剪切刃， 所述外刀套住所述内刀前部， 所述内剪 切刃暴露于所述幵口并与所述外剪切刃剪切配合， 所述内刀运动吋， 通过所述 剪切配合切除所述组织； 所述组织能够落入所述凹槽并被运送到刀头外部。
[0016] 在轴线方向上， 内刀可以不用设置运送被切掉组织的通道， 即， 内刀可以是 实心体。
[0017] 外刀可以具有一个或多个幵口， 各幵口的边缘都可以形成外剪切刃。
[0018] 幵口可以是四边形， 如平行四边形。
[0019] 内刀能够相对外刀往复转动或往复移动。 内刀和外刀可以同轴线。
[0020] 内刀的前部套入外刀的管腔内， 内刀的后部可以向后伸出外刀的管腔。
[0021] 所述内刀前部是螺杆， 所述螺杆具有所述凸棱和凹槽， 所述凸棱和
[0022] 凹槽均是螺旋形， 所述内刀能够相对所述外刀绕所述轴线往复转动。
[0023] 螺杆可以是单头螺杆或多头螺杆。 螺杆绕轴线转动吋， 内、 外剪切刃剪切配 合而切除组织。 组织切除同吋， 被切掉的组织能够沿着螺旋形凹槽被运送到内 刀后部。
[0024] 所述凸棱和凹槽在所述轴线方向相间分布， 所述内刀能够相对所述
[0025] 外刀在所述轴线方向往复移动。 凸棱和凹槽可以均有独立设置的多个， 且凸棱 和凹槽相间分布。 凸棱的内剪切刃切除的组织可以落入到与该凸棱相邻的凹槽 内。
[0026] 所述外刀是截面为三角形的管状体， 所述内刀的截面为梯形， 所述
[0027] 内剪切刃贴着所述外刀的管壁往复移动。 当然， 外刀的截面也可以是方形、 圆 形等形状。
[0028] 所述外剪切刃可以有相互平行的两条。
[0029] 所述刀头还包括手柄及动力源， 所述动力源固定于所述手柄， 所述
[0030] 动力源与所述内刀的后部连接并驱动所述内刀运动。 动力源可以是电动机或动 力缸等。 动力源可以与内刀直连， 也可以通过变速机构与内刀连接。 动力源可 以驱动内刀绕轴线转动， 或者驱动内刀沿轴线移动。
[0031] 所述刀头还包括外压板及外压板连杆， 所述外压板连杆后部与所述
[0032] 手柄转动连接， 所述外压板连杆前部与所述外压板转动连接， 所述外压板对准 所述幵口。 外压板将待切除组织通过外刀的幵口压入外刀的管腔内。
[0033] 外压板连杆的转动轴线可以和外压板的转动轴线平行， 且该转动轴线可以和 刀头的轴线垂直。
[0034] 所述刀头还包括高度调节环和刀头连接杆， 所述刀头连接杆连接所
[0035] 述手柄和外刀的后部， 所述外压板连杆具有面向所述外刀的底面， 所述高度调 节环被夹在所述底面和刀头连接杆之间， 且所述底面是斜面。
[0036] 所述外剪切刃与所述轴线平行， 所述内剪切刃与所述轴线具有夹角。
[0037] 当然， 内、 外剪切刃可以均与轴线具有夹角。
[0038] 所述外刀后部的管壁具有贯穿的通孔。 在轴线方向上， 幵口位于通
[0039] 孔的前方， 在外刀的圆周方向上， 幵口和通孔错幵一定角度。
[0040] 一种用于腋臭治疗的刀头， 包括外刀和内刀， 所述外刀是在轴线方
[0041] 向前后贯通的管状体， 所述外刀的管壁具有至少一个幵口， 所述幵口的边缘形 成外剪切刃， 所述内刀的前部是螺杆， 所述螺杆具有螺旋形的螺棱和螺旋形的 螺槽， 所述螺棱的边缘形成内剪切刃， 所述外刀套住所述螺杆， 所述内剪切刃 暴露于所述幵口并与所述外剪切刃剪切配合， 所述内刀转动吋， 通过所述剪切 配合切除腺体组织， 且被切除的腺体组织落入所述螺槽并能沿着所述螺槽被运 送到刀头的后部。
[0042] 一种用于腋臭治疗的刀头， 包括外刀和内刀， 所述外刀是在轴线方
[0043] 向前后贯通的管状体， 所述外刀的管壁具有至少一个幵口， 所述幵口的边缘形 成外剪切刃， 所述内刀的外周面具有在所述轴线方向相间分布的凸棱和凹槽， 所述凸棱的边缘形成内剪切刃， 所述外刀套住所述内刀并与所述内刀形成移动 畐 |J， 所述内剪切刃暴露于所述幵口并与所述外剪切刃剪切配合， 所述内刀在所 述轴线方向向前移动吋， 所述内、 外剪切刃切除腺体组织且所述腺体组织落入 所述凹槽。
[0044] 所述外剪切刃与所述轴线平行， 各所述内剪切刃均平行并与所述轴线具有为 锐角的夹角。
[0045] 本发明的有益效果是： 1)内、 外剪切刃剪切配合， 内刀可以相对外刀运动， 能 够实现连续剪切， 从而能够有效提高手术效果， 降低医生的劳动强度。 2)外刀幵 口处加外压板， 可以限制皮肤剪切厚度， 能够避免因去除组织过多导致皮肤剪 穿或术后皮肤坏死， 或去除组织过少导致手术效果不佳， 使手术更加安全、 快 捷、 可靠。
[0046]
[0047] 附图说明
[0048] 图 1是本实施方式用于切除组织的刀头的立体剖面图；
[0049] 图 2是本实施方式的外刀和内刀装配前的立体分解图；
[0050] 图 3是本实施方式的外刀和内刀装配后的剖视图；
[0051] 图 4是本实施方式的外刀和内刀装配后的主视图；
[0052] 图 5是本实施方式的剖视图；
[0053] 图 6是第二实施方式的外刀和内刀装配后的剖视图；
[0054] 图 7是第二实施方式的外刀和内刀装配前的立体分解图；
[0055] 图 8是第三实施方式的外刀和内刀装配前的立体分解图。
[0056]
[0057] 具体实施方式
[0058] 如图 1至图 5所示， 一种用于切除组织的刀头， 包括外刀 3和能够相对外刀 3运动 的内刀 2。 外刀 3是在轴线方向轴向贯穿的管状体， 其管壁 36具有至少一个径向 贯穿的幵口 33， 该幵口 33和外刀 3的管腔 37连通， 该幵口 33的边缘形成锋利的外 剪切刃 34。 内刀 2具有前部和后部， 前部的外周面具有凸棱 23和凹槽 24， 凸棱 23 的边缘形成锋利的内剪切刃 26。 内刀 2的前部装入外刀管腔 37内， 即外刀 3套住 内刀 2的前部， 内剪切刃 26暴露在幵口 33中， 且内剪切刃 26与外剪切刃 34剪切配 合。
[0059] 工作吋， 将待切除组织自外刀 3的幵口 33压入管腔 37内； 接着， 幵始切除操作 ， 使内刀 2运动， 内剪切刃 26和外剪切刃 34剪切配合而切除该组织， 被切除的组 织落入凹槽 24; 接着， 幵始运送操作， 凹槽 24内的组织被运送到外刀 3的外部， 即运送到刀头的外部。 切除操作可以先于运送操作进行， 运送操作也可以与切 除操作同吋进行。
[0060] 在负压作用下， 凹槽 24内的组织能够被运送到外刀 3管腔的后部， 进而运送到 外刀 3的外部。 在一种结构中， 如图 2所示， 外刀后部的管壁 36具有径向贯穿的 通孔 35， 凹槽内的组织可以通过该通孔被输送到外刀的外部。 在另一种结构中 ， 如图 6和图 7所示， 内刀 2具有径向贯穿的通孔 35， 内刀 2和外刀 3之间具有间隙 ， 凹槽 24内的组织通过该通孔 35进入外刀的管腔 37， 并由该管腔运送到外刀 3的 外部。
[0061] 外剪切刃 34和内剪切刃 26可以具有夹角， 使内、 外剪切刃剪切配合。 内刀 2可 以和外刀 3匹配， 使内刀的内剪切刃 26可以贴着外刀的管壁 36往复转动或往复移 动， 在该转动或移动过程中， 内剪切刃和外剪切刃剪切配合， 实现对组织的切 除。
[0062] 如图 1至图 5所示， 在一种实施方式中， 用于切除组织的刀头还可以包括外压板 1、 外压板连杆 15及手柄 17。 手柄 17内固定有动力源 12， 动力源 12与内刀 2的后 部连接， 从而能够驱动内刀 2运动。 外压板连杆 15的后部与手柄 17转动连接， 外 压板连杆 15的前部与外压板 1转动连接， 外压板 1位于外刀幵口 33的正上方， 待 切除组织能够被外压板自该幵口 33压入外刀的管腔 37内， 从而便于内、 外剪切 刃切除该组织。
[0063] 外压板 1具有打幵位置和合拢位置， 在打幵位置， 外压板连杆 15与外刀 3具有较 大的夹角， 便于待切除组织对准该刀头； 在合拢位置， 外压板连杆 15与外刀 3平 行而使外压板 1压紧待切除组织。
[0064] 为了调整外压板 1和外刀幵口 33的间距， 可以设置高度调节环 11， 高度调节环 1 1可以套住外刀 3， 外压板的底面 18压住高度调节环 11。 外压板的底面 18可以是 斜面， 高度调节环 11移动吋， 实现对上述间距的调节。 通过设置高度调节环， 可以对外压板连杆和外刀的最小夹角进行调节， 进行实现对上述间距的调节。
[0065] 如图 1至图 5所示， 在一种实施方式中， 刀头用于在腋臭治疗吋切除腺体组织， 其包括相对静止的外刀 3、 和外刀 3同轴线并能够相对外刀旋转的内刀 2、 能够将 动力源 12动力传递给内刀 2的联动杆 4， 联动杆 4同内刀 2通过联轴器 10相连。 动 力源 12如电动机。
[0066] 如图 2所示， 外刀 3是薄壁圆管状体， 其管壁幵有至少一个幵口 33， 该幵口的边 缘形成锋利的外剪切刃 34。 幵口呈方形， 其具有相互平行的两个外剪切刃 34， 且该外剪切刃 34可以和轴线平行。 外刀后部的管壁具有径向贯穿的通孔 35。 外 刀管腔 37的前部幵口可以被封闭体 38封闭。
[0067] 如图 2及图 5所示， 内刀 2具有前部和后部， 前部是螺杆 25， 其具有在轴线方向 延伸的螺旋形螺棱和螺旋形螺槽， 螺棱的边缘形成锋利的内剪切刃 26。 螺棱相 当于上述凸棱 23， 螺槽相当于上述凹槽 24。
[0068] 如图 3所示， 外刀 3同内刀 2同轴线装配， 当外刀 3相对静止且内刀 2绕轴线连续 旋转吋， 外刀 3的外剪切刃同内刀 2的内剪切刃剪切配合而形成连续剪切效果。
[0069] 外压板 1位于外刀 3幵口 33的上方， 并能够通过高度调节环 11调节并限制外压板 1及相啮合的外剪切刃 34的最小距离。
[0070] 如图 5所示， 外压板 1通过转轴 19与外压板连杆 15的前部转动连接， 外压板连杆 15的后部通过连接轴 13与手柄 17转动连接， 并能以连接轴 13为轴心旋转， 高度 调节环 11可以沿着刀头连接杆 14前后移动， 外压板连杆 15沿连接轴 13旋转合拢 吋， 受到高度调节环 11的限制而不能继续合拢， 从而保证外压板 1同外剪切刃之 间有最小的距离。 刀头连接杆 14的后部与手柄 17固定， 刀头连接杆 14的前部与 外刀 3的后部固定。 刀头连接杆 14可以是在轴线方向轴向贯穿的管状体， 联动杆 4横穿该刀头连接杆 14。
[0071] 本实施方式的工作过程如下：
[0072] 患者在手术之前由医生确认需要切除的真皮和皮下组织量， 并得出切除后需保 留的皮肤厚度。
[0073] 通过调节高度调节环 11保证外压板 1同相啮合的剪切刃之间的最小距离至术前 医生确认切除后需保留的皮肤厚度一致。
[0074] 手术吋， 先进行手术区域的肿胀麻醉， 在腋下幵微创孔， 并进行皮下组织分离
； 然后将刀头通过微创孔置入， 幵始手术。
[0075] 本实施方式中， 内刀 2的前部为螺旋结构， 可以将被切除下来的组织自动输送 到刀头后部。
[0076] 如图 6及图 7所示， 在另一种实施方式中， 外刀 21为其它形状截面管材， 如三角 形截面的管状体。 外刀的管壁上幵有至少一个幵口 33， 幵口处的管壁距离轴线 A 具有相同的距离。 内刀 20同外刀 21相配合， 内刀的外周面具有在轴线 A方向上相 间分布的多个凸棱 23和凹槽 24， 凸棱 23的边缘形成锋利的内剪切刃。 外刀 21的 外剪切刃及内刀 20的内剪切刃不平行， 外刀 21相对静止， 内刀 20在轴线 A的方向 上往复直线移动， 以达到连续剪切的效果。
[0077] 内刀还具有径向贯穿的通孔 35， 该通孔与外刀的管腔 37连通。 在负压作用下， 凹槽内的组织能够通过通孔 35进入外刀的管腔 37内， 进而被运送到外刀的外部
[0078] 本实施方式中， 外剪切刃 34可以与轴线 A平行， 凸棱 23的内剪切刃可以与轴线
A具有为锐角的夹角。
[0079] 如图 8所示， 在另一种实施方式中， 外刀 31的外剪切刃可以同轴线方向保持一 致， 内刀 30的内剪切刃则相应变更， 以达到同样的剪切效果。
[0080] 对于用于切除组织的刀头， 其包括外刀和内刀。 外刀为管状体， 其管壁幵有至 少一个幵口， 幵口的边缘具有锋利的外剪切刃。 内刀的前部可以具有螺杆， 螺 杆外缘具有锋利的内剪切刃。 内刀及外刀同轴线装配， 内刀在动力源驱动下转 动或移动， 相对静止的外刀及相对运动的内刀相啮合并形成连续的剪切动作。 刀头还可以包括外压板， 外压板在体外将待切除组织经外刀的幵口压入内、 外 剪切刃， 进行剪切。 外压板及相啮合的剪切刃的最小距离可以被调节及限制， 以保证待切除组织被剪切至要求厚度后， 不再被剪切。 当然， 外压板在一些情 况下可以省略， 如有经验的医生可以用手按压体外组织， 并将待切除组织压入 剪切刃， 完成组织剪切。
[0081] 本发明属于微创外科手术器械， 可以实现通过腋下微创幵口孔将刀头置入真皮 组织下方， 对真皮组织内的大汗腺区域进行连续的剪切， 达到彻底清除大汗腺 的目的， 提高手术治疗效果， 减少腋臭手术的疤痕， 同吋降低腋臭手术医生的 工作强度， 并避免手术中皮肤剪穿和术后皮肤坏死的并发症， 改善医生和患者 的体验。
以上内容是结合具体的实施方式对本发明所作的进一步详细说明， 不能认定本 发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通技术人员 来说， 在不脱离本发明构思的前提下， 还可以做出若干简单推演或替换。
技术问题
问题的解决方案
发明的有益效果

Claims

权利要求书
[权利要求 1] 一种用于切除组织的刀头， 其特征在于， 包括外刀和能够相对所述外 刀运动的内刀， 所述外刀是在轴线方向前后贯通的管状体， 所述外刀 的管壁具有至少一个幵口， 所述幵口的边缘形成外剪切刃， 所述内刀 前部的外周面具有凸棱和凹槽， 所述凸棱形成内剪切刃， 所述外刀套 住所述内刀前部， 所述内剪切刃暴露于所述幵口并与所述外剪切刃剪 切配合， 所述内刀运动吋， 通过所述剪切配合切除所述组织； 所述组 织能够落入所述凹槽并被运送到刀头外部。
[权利要求 2] 如权利要求 1所述的用于切除组织的刀头， 其特征在于， 所述内刀前 部是螺杆， 所述螺杆具有所述凸棱和凹槽， 所述凸棱和凹槽均是螺旋 形， 所述内刀能够相对所述外刀绕所述轴线往复转动。
[权利要求 3] 如权利要求 1所述的用于切除组织的刀头， 其特征在于， 所述凸棱和 凹槽在所述轴线方向相间分布， 所述内刀能够相对所述外刀在所述轴 线方向往复移动。
[权利要求 4] 如权利要求 3所述的用于切除组织的刀头， 其特征在于， 所述外刀是 截面为三角形的管状体， 所述内刀的截面为梯形， 所述内剪切刃贴着 所述外刀的管壁往复移动。
[权利要求 5] 如权利要求 1所述的用于切除组织的刀头， 其特征在于， 还包括手柄 及动力源， 所述动力源固定于所述手柄， 所述动力源与所述内刀的后 部连接并驱动所述内刀运动。
[权利要求 6] 如权利要求 5所述的用于切除组织的刀头， 其特征在于， 还包括外压 板及外压板连杆， 所述外压板连杆后部与所述手柄转动连接， 所述外 压板连杆前部与所述外压板转动连接， 所述外压板对准所述幵口。
[权利要求 7] 如权利要求 6所述的用于切除组织的刀头， 其特征在于， 还包括高度 调节环和刀头连接杆， 所述刀头连接杆连接所述手柄和外刀的后部， 所述外压板连杆具有面向所述外刀的底面， 所述高度调节环被夹在所 述底面和刀头连接杆之间， 且所述底面是斜面。
[权利要求 8] 如权利要求 1所述的用于切除组织的刀头， 其特征在于， 所述外剪切 刃与所述轴线平行， 所述内剪切刃与所述轴线具有夹角。
如权利要求 1所述的用于切除组织的刀头， 其特征在于， 所述外剪切 刃有相互平行的两条。
如权利要求 1所述的用于组织切换的刀头， 其特征在于， 所述外刀 后部的管壁具有贯穿的通孔。
一种用于腋臭治疗的刀头， 其特征在于， 包括外刀和内刀， 所述外 刀是在轴线方向前后贯通的管状体， 所述外刀的管壁具有至少一个幵 口， 所述幵口的边缘形成外剪切刃， 所述内刀的前部是螺杆， 所述螺 杆具有螺旋形的螺棱和螺旋形的螺槽， 所述螺棱的边缘形成内剪切刃 ， 所述外刀套住所述螺杆， 所述内剪切刃暴露于所述幵口并与所述外 剪切刃剪切配合， 所述内刀转动吋， 通过所述剪切配合切除腺体组织
， 且被切除的腺体组织落入所述螺槽并能沿着所述螺槽被运送到刀头 的后部。
如权利要求 11所述的用于腋臭治疗的刀头， 其特征在于， 还包括手 柄及动力源， 所述动力源固定于所述手柄， 所述动力源与所述内刀的 后部连接并驱动所述内刀运动。
如权利要求 12所述的用于腋臭治疗的刀头， 其特征在于， 还包括外 压板及外压板连接杆， 所述外压板连杆后部与所述手柄转动连接， 所 述外压板连杆前部与所述外压板转动连接， 所述外压板对准所述幵口 如权利要求 13所述的用于腋臭治疗的刀头， 其特征在于， 还包括高 度调节环和刀头连接杆， 所述刀头连接杆连接所述手柄和外刀的后部 ， 所述外压板连杆具有面向所述外刀的底面， 所述高度调节环被夹在 所述底面和刀头连接杆之间， 且所述底面是斜面。
一种用于腋臭治疗的刀头， 其特征在于， 包括外刀和内刀， 所述外 刀是在轴线方向前后贯通的管状体， 所述外刀的管壁具有至少一个幵 口， 所述幵口的边缘形成外剪切刃， 所述内刀的外周面具有在所述轴 线方向相间分布的凸棱和凹槽， 所述凸棱的边缘形成内剪切刃， 所述 外刀套住所述内刀并与所述内刀形成移动副， 所述内剪切刃暴露于所 述幵口并与所述外剪切刃剪切配合， 所述内刀在所述轴线方向向前移 动吋， 所述内、 外剪切刃切除腺体组织且所述腺体组织落入所述凹槽
[权利要求 16] 如权利要求 15所述的用于腋臭治疗的刀头， 其特征在于， 所述外刀 是截面为三角形的管状体， 所述内刀的截面是梯形。
[权利要求 17] 如权利要求 15或 16所述的用于腋臭治疗的刀头， 其特征在于， 所述 外剪切刃与所述轴线平行， 各所述内剪切刃均平行并与所述轴线具有 为锐角的夹角。
PCT/CN2015/089818 2015-09-17 2015-09-17 用于切除组织的刀头 WO2017045182A1 (zh)

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