WO2021164535A1 - 一种用于拔除输尿管支架的拔除装置 - Google Patents

一种用于拔除输尿管支架的拔除装置 Download PDF

Info

Publication number
WO2021164535A1
WO2021164535A1 PCT/CN2021/074759 CN2021074759W WO2021164535A1 WO 2021164535 A1 WO2021164535 A1 WO 2021164535A1 CN 2021074759 W CN2021074759 W CN 2021074759W WO 2021164535 A1 WO2021164535 A1 WO 2021164535A1
Authority
WO
WIPO (PCT)
Prior art keywords
main pipe
outer sheath
ureteral stent
removal device
connector
Prior art date
Application number
PCT/CN2021/074759
Other languages
English (en)
French (fr)
Inventor
向彬
万肖蓬
胡剑灵
瞿星辉
Original Assignee
广州维力医疗器械股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州维力医疗器械股份有限公司 filed Critical 广州维力医疗器械股份有限公司
Publication of WO2021164535A1 publication Critical patent/WO2021164535A1/zh

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/50—Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body

Definitions

  • the invention relates to the field of medical equipment, and in particular to an extraction device for extracting a ureteral stent.
  • urinary surgery usually has a built-in ureteral stent in the human ureter.
  • the ureteral stent is also called double J tube, J-shaped tube, DJ tube or pig tail tube.
  • the ureteral stent needs to be pulled out from the human body through the urethra after being indwelled for a period of time.
  • the common practice in hospitals is to send the patient to the operating room.
  • the doctor operates the cystoscope to insert it from the urethra to the bladder.
  • the surgical forceps are inserted into the working channel of the cystoscope, and then the ureter is clamped.
  • the stent is pulled out of the body.
  • the above-mentioned traditional extubation method has the following problems: 1. It needs the assistance of a cystoscope to pull out the ureteral stent. The operation is inconvenient. The operating environment is only in the operating room, that is, the operating environment is limited. Nervous and professional doctors are busy, patients who remove ureteral stents usually need to queue up for appointment, and the cost of ureteral removal is high; 2. Cystoscopy is inserted from the urethra, because the cystoscope has a certain volume, it has a greater impact on the urethra and is likely to cause damage to the urethra.
  • the cystoscope is expensive, sterilized and reused, and the hospital needs to be equipped with a certain number of expensive cystoscopes according to the amount of surgery on the day .
  • the purpose of the present invention is to provide an extraction device for ureteral stent extraction that is not limited to the operating room to perform ureteral stent extraction operations and the extraction operation has less impact on the urethra.
  • the extraction device can be used without the auxiliary operation of a cystoscope.
  • the removal of the ureteral stent is realized, and the removal device is not only suitable for doctors, but also can be operated by nurses.
  • the extraction device includes an outer sheath tube; it also includes an obturator that can be inserted into the bladder from the urethra after the outer sheath tube and the outer sheath tube are installed together; it also includes The main pipe and a grabber that can be inserted into the outer sheath after being installed with the main pipe; wherein an adjustment structure for controlling the bending of the front end of the main pipe is provided at the end of the main pipe, and the grab
  • the grabber includes a silk body with a front end that can pass through the main pipe, a cover for grabbing the ureteral stent is installed at the front end of the silk body, and a grabber handle for mounting and cooperating with the end of the main pipe is installed at the end of the silk body .
  • a CMO camera is provided at the front end of the main pipe, and a camera connector is provided at the end of the main pipe, and one end of the camera connector is connected to the CMO camera through a conductive wire. The other end is connected to an external camera system through a conductive wire, wherein the CMO camera and the camera connector are fixedly installed on the main pipe, or the CMO camera and the camera connector are detachably installed on the main pipe.
  • a power connector is provided on the gripper handle, one end of the power connector is connected to an external power source, and the other end of the power connector is connected to the wire body for energizing the wire body for cutting Or electrocoagulation; wherein, the filament body and the cover body are made of conductive materials.
  • a sleeve is detachably sleeved on the wire body
  • a retractor is detachably provided on the gripper handle
  • both the wire body and the cover are made of copper alloy materials, or,
  • the wire body and the cover body are both made of aluminum alloy material, or the wire body and the cover body are both made of conductive plastic, or the wire body and the cover body are both made of memory alloy material.
  • the adjustment structure includes an adjustment pull buckle and a pull wire
  • the adjustment pull buckle is installed at the end of the main pipe, one end of the pull wire is fixed on the front end of the main pipe, and the other end of the pull wire is fixed on the adjustment pull buckle .
  • the main tube is a single-lumen tube or a multi-lumen tube with multiple lumens
  • the front end of the main tube is an implanted end
  • the end of the main tube is a handle end installed with a main tube control handle
  • the main tube control handle includes
  • the connecting seat at the end of the main pipe is provided with first cavities matching the cavities of the main pipe in the connecting seat, and the number of cavities of the first cavities is the same as the number of cavities of the main pipe
  • the connecting seat is also provided with a groove for cooperating with the adjusting buckle to adjust the tensioning force of the pull wire, and the adjusting buckle is installed on the groove; on the connecting seat
  • the end is provided with a first lumen interface that can be fixedly connected with the outer sheath tube.
  • a first scale for indicating the insertion direction of the main tube is provided on the outer surface of the main tube
  • a second scale for indicating the degree of bending of the implanted end of the main tube is provided on the outer surface of the connecting seat.
  • the main tube implant end is a round, tapered or elliptical bendable end; the bending angle of the main tube implant end is 0 degrees to 180 degrees, for example: 30 degrees, 60 degrees, 90 degrees, 120 degrees Degrees, 150 degrees.
  • the outer sheath is a single-lumen tube or a multi-lumen tube with multiple lumens
  • the front end of the outer sheath is a bendable implant end
  • the end of the outer sheath is fitted with a connector Handle end
  • the connecting head is provided with a second lumen that matches the lumen of the outer sheath and the number of lumen of the second lumen is the same as the number of lumen of the outer sheath
  • the second cavity is provided with a second cavity interface which can be fixedly connected with the obturator or the main pipe.
  • a third scale for indicating the insertion direction of the outer sheath is provided on the outer surface of the outer sheath, and a fourth scale is provided on the outer surface of the connector.
  • the bendable implant end of the outer sheath is provided with a positioning balloon communicating with one of the lumen of the outer sheath, and the positioning balloon is connected with an inflation line through the lumen.
  • an injection joint is installed on the end of the inflation pipeline away from the positioning balloon, and a one-way valve is also installed on the inflation pipeline.
  • the obturator is a single-lumen tube or a multi-lumen tube with multiple lumens
  • the front end of the obturator is an implanted end
  • the end of the obturator is a handle end provided with a joint.
  • a connecting buckle which is fixedly matched with the connecting head so that the obturator is inserted into the outer sheath and is installed with the outer sheath.
  • the implanted end of the orifice is a taper head with a hole, a round head with a hole or an oval head with a hole, and a luer connector is provided on the connector.
  • the cover is a three-claw-shaped grabbing mask or a snare-shaped grabbing mask or a scissor-shaped grabbing mask composed of at least two silk threads.
  • the length of the filament body is longer than the length of the main pipe, and the front end of the filament body is a bendable end.
  • a fifth scale is provided on the outer surface of the silk body.
  • an adjustment button is provided on the gripper handle that cooperates with the silk body for adjusting the stretch length of the silk body.
  • the outer sheath tube, the obturator, and the main tube are all made of hard material or semi-hard material or soft material, for example: the hard material is stainless steel or aluminum alloy, and the semi-hard material It is a polymer material of PA, PP or ABS, and the soft material is PU, PVC or silica gel.
  • the hard material is stainless steel or aluminum alloy
  • the semi-hard material It is a polymer material of PA, PP or ABS
  • the soft material is PU, PVC or silica gel.
  • the outer sheath, the obturator, and the main pipe are all composed of a front end and an end, wherein the front ends of the outer sheath, the obturator, and the main pipe are all made of soft material or hard material or semi-hard material
  • the ends of the outer sheath, obturator, and main pipe are all made of hard material or semi-hard material, for example: the hard material is stainless steel or aluminum alloy, and the semi-hard material is PA, PP or ABS polymer material, and the soft material is PU, PVC or silica gel.
  • the present invention has the following beneficial effects:
  • the outer sheath, the obturator, the main pipe and the grasper work together.
  • the outer sheath and the obturator are assembled together and inserted from the urethra to the bladder in the direction. 1CM, then exit the obturator, assemble the main pipe and the grabber and insert it into the outer sheath according to the indicated direction, extend the cover, operate the grabber handle to control the front end of the main pipe to bend, and then extend the cover to make it
  • the ureteral stent is put on it, and finally the outer sheath, main pipe, grabber and ureteral stent are pulled out together. Therefore, the present invention can pull out the ureteral stent without the visual assistance of a cystoscope.
  • the ureteral stent can be removed by the nurse. That is to say, the extraction operation is not limited to the operation room when using the present invention. Since the outer sheath of the present invention does not require the use of a cystoscope, the outer diameter of the device entering the urethra is small, the impact on the urethra is less, and the urethra can be better protected, that is, the present invention has less impact on the urethra during the removal operation. In the present invention, if a positioning balloon is provided at the front end of the outer sheath, when urine flows out, it is inserted about 1 cm, and then the positioning balloon is filled and the obturator exits, that is, the operation effect is better.
  • the traditional technology needs to remove the ureteral stent visually under the endoscope to the present invention to remove the ureteral stent under the state that does not need to be visualized, so that the present invention reduces the technical requirements and learning difficulty of extubation, and reduces the operator’s Requirements, the operation by doctors can be expanded to be operable by doctors, nurses, etc., which reduces the resource requirements for extubation, does not occupy the operating room for extubation, does not need to use expensive endoscopes, etc.; because there is no need to use the operating room and require preparation A large number of sterilized endoscopes are extubated to avoid the need for patients to queue for extubation.
  • the present invention reduces the risk of cross infection caused by repeated sterilization; the present invention greatly reduces the outer diameter of the instrument by not requiring the use of cystoscopes, etc.
  • the urethral injury caused by extubation is greatly reduced, and the patient's discomfort when inserted into the urethra is also alleviated; the present invention greatly improves the efficiency and reduces the cost of removing the ureteral stent, and reduces the economic burden of the patient. Burden, physical trauma; the operation of removing the ureteral stent using the present invention is equivalent to the operation of pulling and inserting a small-sized urinary catheter, which is relatively easy for patients to accept.
  • FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of a supervisor in Embodiments 1 to 4 of the present invention.
  • FIG. 3 is a schematic diagram of the outer sheath structure of the first to fourth embodiments of the present invention.
  • FIG. 4 is a schematic diagram of the structure of the obturator according to the first to fourth embodiments of the present invention.
  • FIG. 5 is a schematic diagram of the structure of the grabber of the first to fourth embodiments of the present invention.
  • Embodiment 2 of the present invention is a schematic structural diagram of Embodiment 2 of the present invention.
  • FIG. 7 is a schematic structural diagram of Embodiment 3 of the present invention.
  • Fig. 8 is a schematic structural diagram of the fourth embodiment of the present invention.
  • the extraction device 100 includes an outer sheath tube 1;
  • the obturator 2 that can be inserted into the bladder from the urethra; it also includes a main pipe 3 and a grabber 4 that can be inserted into the outer sheath 1 after being installed with the main pipe 3; wherein, the main pipe 3
  • the end is provided with an adjustment structure 5 for controlling the bending of the front end of the main pipe 3, and the grabber 4 includes a silk body 41 whose front end can pass through the main pipe 3, and the front end of the silk body 41 is installed for grabbing
  • the cover body 42 of the ureteral stent has a gripper handle 43 installed at the end of the filament 41 for fitting with the end of the main pipe 3.
  • the adjusting structure 5 includes an adjusting pull buckle 51 and a pull wire 52, the adjusting pull buckle 51 is installed at the end of the main pipe 3, one end of the pull wire 52 is fixed at the front end of the main pipe 3, and the other end of the pull wire 52 is fixed at the end of the main pipe 3.
  • the adjustment pull buckle 51 is on.
  • the main tube 3 is a single-lumen tube or a multi-lumen tube with multiple lumens, the front end of the main tube 3 is the implant end, and the end of the main tube 3 is the handle end where the main control handle 31 is installed; the main control handle 31 includes The connecting seat 311 installed at the end of the main pipe 3 is provided with a first cavity 312 matching the cavity of the main pipe 3 in the connecting seat 311, and the number of the first cavity 312 is equal to that of the The main pipe 3 has the same number of cavities, and the connecting seat 311 is also provided with a slot 313 for cooperating with the adjusting pull buckle 51 to adjust the tensioning force of the pull wire 52, and the adjusting pull buckle 51 Installed on the slot 313; at the end of the connecting seat 311 is provided with a first lumen interface 314 that can be fixedly connected to the outer sheath 1.
  • the outer surface of the main pipe 3 is provided with a first scale 32 for indicating the insertion direction of the main pipe 3, and the outer surface of the connecting seat 311 is provided with a first scale 32 for indicating the degree of bending of the implanted end of the main pipe 3
  • the second scale 315 is provided.
  • the implanted end of the main pipe 3 is a round, tapered or elliptical bendable end; the bending angle of the implanted end of the main pipe 3 is 0° to 180°, for example: 30°, 60°, 90°, 120° , 150 degrees.
  • the outer sheath 1 is a single-lumen tube or a multi-lumen tube with multiple lumens, the front end of the outer sheath 1 is a bendable implant end, and the end of the outer sheath 1 is equipped with a connector 11
  • the handle end; the connecting head 11 is provided with a second lumen 12 matching the lumen of the outer sheath 1 and the number of lumen of the second lumen 12 is the same as that of the outer sheath 1
  • the number of cavities is the same, and the second cavity 12 is provided with a second cavity interface 13 that can be fixedly connected with the obturator 2 or the main pipe 3.
  • a third scale 14 for indicating the insertion direction of the outer sheath 1 is provided on the outer surface of the outer sheath 1, and a fourth scale 15 is provided on the outer surface of the connector 11.
  • the obturator 2 is a single-lumen tube or a multi-lumen tube with multiple lumens.
  • the connector 21 is provided with a connecting buckle 22 fixedly matched with the connecting head 11 so that the obturator 2 is inserted into the outer sheath 1 and then mounted with the outer sheath 1.
  • the implanted end of the hole device 2 is a cone with a hole, a round head with a hole or an elliptical head with a hole, and a luer connector 23 is provided on the connector 21.
  • the cover 42 is a three-claw-shaped grabbing mask or a snare-shaped grabbing mask or a scissor-shaped grabbing mask composed of at least two silk threads.
  • the length of the filament 41 is longer than the length of the main pipe 3, and the front end of the filament 41 is a bendable end.
  • a fifth scale 44 is provided on the outer surface of the filament 41.
  • the gripper handle 43 is provided with an adjustment button 45 that cooperates with the wire body 41 to adjust the stretched length of the wire body 41.
  • the outer sheath tube 1, the obturator 2, and the main tube 3 are all made of hard material or semi-hard material or soft material, for example: the hard material is stainless steel or aluminum alloy, and the semi-hard material It is a polymer material of PA, PP or ABS, and the soft material is PU, PVC or silica gel.
  • the outer sheath 1, the obturator 2, and the main pipe 3 are all composed of a front end and an end.
  • the outer sheath tube 1, the obturator 2, and the main tube 3 are all made of hard material or semi-hard material.
  • the hard material is stainless steel or aluminum alloy.
  • the semi-rigid material is PA, PP or ABS polymer material, and the soft material is PU, PVC or silica gel.
  • the extraction device 100 is composed of four parts: the outer sheath 1, the obturator 2, the main pipe 3, and the grabber 4, and they cooperate with each other.
  • the working process is as follows: First, the outer sheath 1 and the obturator 2 are assembled together and inserted from the urethra to the bladder according to the direction.
  • a CMO camera 6 is provided at the front end of the main pipe 3
  • a camera connector 7 is provided at the end of the main pipe 3
  • the camera One end of the connector 7 is connected to the CMO camera 6 through a conductive wire
  • the other end of the camera connector 7 is connected to an external camera system through a conductive wire.
  • the CMO camera 6 and the camera connector 7 are fixedly installed in On the main pipe, or, the CMO camera 6 and the camera connector 7 are detachably installed on the main pipe.
  • the extraction device 100 is composed of four parts: the outer sheath 1, the obturator 2, the main pipe 3, and the grabber 4, and they cooperate with each other.
  • the working process is as follows: First, the outer sheath 1 and the obturator 2 are assembled together and inserted from the urethra to the bladder according to the direction.
  • a power connector 8 is provided on the gripper handle 43, and one end of the power connector 8 is connected to an external power source.
  • the other end of the power connector 8 is connected to the filament 41 for energizing the filament 41 for cutting or electrocoagulation; wherein, the filament 41 and the cover 42 are made of conductive materials.
  • a sleeve 200 is detachably sleeved on the wire body 41, a retractor 300 is detachably provided on the gripper handle 43, and the wire body 41 and the cover body 42 are made of copper alloy materials, Alternatively, the wire body 41 and the cover body 42 are made of aluminum alloy material, or the wire body 41 and the cover body 42 are both made of conductive plastic, or the wire body 41 and the cover body 42 are both made of Made of memory alloy material.
  • the sleeve 200 is sleeved on the silk body 41 from the front end of the silk body 41 to the end direction, and then the end of the silk body 41 is connected to the retractor 300, and the retractor 300 controls the expansion and contraction of the silk body 41 to shrink it. Inside the sleeve 200 or out of the sleeve 200.
  • the extraction device 100 is composed of four parts: the outer sheath 1, the obturator 2, the main pipe 3, and the grabber 4, and they cooperate with each other.
  • the working process is as follows: First, the outer sheath 1 and the obturator 2 are assembled together and inserted from the urethra to the bladder according to the direction. When there is urine outflow, insert about 1cm, and then exit the obturator 2; secondly, the grasper 4 Sleeve the sleeve 200, and then assemble the sleeve 200 together with the grabber 4 and the main pipe 3 and insert it into the outer sheath 1 according to the indicated direction.
  • the telescopic device 300 controls the expansion and contraction of the filament 41, and then extends the cover Body 42, or directly assemble the grabber 4 and the main pipe 3 together and insert it into the outer sheath 1 according to the indicated direction, and extend the cover body 42, and then operate the adjustment pull buckle 51 and the pull wire to control the front end of the main pipe 3 It is bent, and the adjustment button 45 is operated to control the expansion and contraction of the mask body 42 so as to put it on the ureteral stent; then, the power connector 8 is connected to an external power source, and the conductive properties of the silk body 41 and the mask body 42 are used to cut or electrically cut the local tissues of the bladder. Coagulation treatment; finally, pull out the outer sheath 1, the main pipe 3, the grabber 4 and the ureteral stent together.
  • the difference between this embodiment and the first embodiment is that the bendable implant end of the outer sheath 1 is provided with a position communicating with one of the lumen of the outer sheath 1
  • the balloon 9 and the positioning balloon 9 are connected with an inflation line 10 through the cavity.
  • An injection joint 101 is installed on the end of the inflation tube 10 away from the positioning balloon 9, and a one-way valve 102 is also installed on the inflation tube 10.
  • the extraction device 100 is composed of four parts: the outer sheath 1, the obturator 2, the main pipe 3, and the grabber 4, and they cooperate with each other.
  • the working process is as follows: First, the outer sheath 1 and the obturator 2 are assembled together and inserted from the urethra to the bladder according to the direction, and then insert about 1CM after the urine flows out; secondly, through the injection connector 101 through the one-way valve 102, The outer sheath 1 lumen is inflated to the positioning balloon 9, and then the obturator 2 is withdrawn after the positioning balloon 9 is filled.
  • the operation effect is better and the patient's discomfort is alleviated; then, the main tube 3 and the grasper 4 are assembled in Together, they are inserted into the outer sheath 1 according to the indicated direction, the cover 42 is extended, the adjustment pull buckle 51 is operated to cooperate with the pull wire to control the front end of the main pipe 3 to bend, and the adjustment button 45 is operated to control the expansion of the cover 42 so that it is put on the ureter. Stent; finally, pull out the outer sheath 1, the main pipe 3, the grabber 4 and the ureteral stent together.
  • the present invention adopts the above-mentioned structure, is not limited to the operating room to perform the ureteral stent removal operation and the removal operation has little impact on the urethra. It can also achieve the removal of the ureteral stent without the auxiliary operation of the cystoscope. The operation of the doctor can also be operated by the nurse.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Transplantation (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Prostheses (AREA)

Abstract

一种用于拔除输尿管支架的拔除装置（100），拔除装置（100）包括外鞘管（1）；其还包括用于插入外鞘管（1）与外鞘管（1）安装在一起后能够从尿道插入到膀胱的闭孔器（2）；其还包括主管（3）和用于与主管（3）安装在一起后能够插入到外鞘管（1）中的抓取器（4）；其中，在主管（3）末端设有一用于控制主管（3）前端弯曲的调节结构（5），以及，抓取器（4）包括前端能够穿过主管（3）的丝体（41），在丝体（41）前端安装有用于抓取输尿管支架的罩体（42），在丝体（41）末端安装有用于与主管（3）末端安装配合的抓取器手柄（43）。拔除装置（100）不受限于手术室进行输尿管支架拔除操作并且拔除操作对尿道影响较小，在不采用膀胱镜的辅助操作下也能够实现拔除输尿管支架，除了适用于医生操作还可以由护士操作。

Description

一种用于拔除输尿管支架的拔除装置 技术领域
本发明涉及医疗器械领域，特别涉及一种用于拔除输尿管支架的拔除装置。
背景技术
泌尿外科根据治疗的需要通常会在人体输尿管内内置输尿管支架，其中，输尿管支架又称双J管、J形管、DJ管或猪尾巴管。输尿管支架留置一段时间后需要从人体经尿道拔出。目前，医院的普通做法是将患者送手术室，由医生操作膀胱镜从尿道插入后到达膀胱，通过目镜观察找到输尿管支架后，在膀胱镜的工作通道中伸入手术钳，然后，夹紧输尿管支架拔出至体外。
上述的传统拔管方式，存在如下问题：1.其需要在膀胱镜的辅助下才可以将输尿管支架拔出体外，操作不方便，操作环境仅在手术室即其操作环境受到限制，由于手术室紧张及专业的医生繁忙，拔除输尿管支架的患者通常需要排队预约，拔除输尿管费用高；2.膀胱镜从尿道插入，由于膀胱镜具有一定体积，其对尿道影响较大，容易对尿道造成伤害，即操作这手术的过程容易对尿道产生损伤，给患者带来比较大的心理压力或者创伤；3.膀胱镜价格昂贵，灭菌重复使用，需要医院根据当日手术量配备一定数量的昂贵的膀胱镜。
如何解决上述难题，成为亟待解决的技术问题。
发明内容
本发明的目的在于提供一种不受限于手术室进行输尿管支架拔除操作并 且拔除操作对尿道影响较小的用于拔除输尿管支架的拔除装置，该拔除装置可以不采用膀胱镜的辅助操作也能够实现拔除输尿管支架，该拔除装置除了适用于医生操作还可以由护士操作。
为实现上述目的，本发明提供如下技术方案：
一种用于拔除输尿管支架的拔除装置，该拔除装置包括外鞘管；其还包括用于插入外鞘管与外鞘管安装在一起后能够从尿道插入到膀胱的闭孔器；其还包括主管和用于与所述主管安装在一起后能够插入到外鞘管中的抓取器；其中，在所述主管末端设有一用于控制所述主管前端弯曲的调节结构，以及，所述抓取器包括前端能够穿过所述主管的丝体，在该丝体前端安装有用于抓取输尿管支架的罩体，在该丝体末端安装有用于与所述主管末端安装配合的抓取器手柄。
优选地，在所述主管的前端设有CMO摄像头，在所述主管的末端设有摄像接头，并且，所述摄像接头的一端通过导电线与所述CMO摄像头连接，所述所述摄像接头的另一端通过导电线与一外接摄像系统连接，其中，所述CMO摄像头、摄像接头为固定安装在所述主管上，或者，所述CMO摄像头、摄像接头为可拆卸安装在所述主管上。
优选地，在所述抓取器手柄上设有电源接头，所述电源接头的一端与一外部电源连接，所述电源接头的另一端与所述丝体连接用于给该丝体通电进行切割或者电凝；其中，所述丝体、罩体均由导电材料制成。
优选地，还在所述丝体上可拆卸套装有套管，在所述抓取器手柄上可拆卸设有伸缩器，所述丝体、罩体均由铜合金材料制成，或者，所述丝体、罩体均由铝合金材料制成，或者，所述丝体、罩体均由导电塑料制成，或者，所述丝体、罩体均由记忆合金材料制成。
优选地，所述调节结构包括调节拉扣和拉线，所述调节拉扣安装在所述主管末端，所述拉线一端固定在所述主管前端，所述拉线另一端固定在所述 调节拉扣上。
优选地，所述主管为单腔管或者具有多个腔道的多腔管，该主管前端为植入端，该主管末端为安装有主管控制手柄的手柄端；所述主管控制手柄包括安装在所述主管末端的连接座，在所述连接座内设有与所述主管的腔道相匹配的第一腔道且该第一腔道的腔道数量与所述主管的腔道数量相同，还在所述连接座上设有一用于与所述调节拉扣配合调整所述拉线拉紧力的卡槽，并且，所述调节拉扣安装在所述卡槽上；在所述连接座的末端设有能够与所述外鞘管固定连接的第一腔道接口。
优选地，在所述主管的外表面上设有用于指示该主管插入方向的第一刻度，在所述连接座的外表面上设有用于指示所述主管的植入端弯曲程度的第二刻度。
优选地，所述主管植入端为圆形或者锥形或者椭圆形的可弯曲端；所述主管植入端的弯曲角度为0度至180度，例如：30度、60度、90度、120度、150度。
优选地，所述外鞘管为单腔管或者具有多个腔道的多腔管，所述外鞘管的前端为可弯曲植入端，所述外鞘管的末端为安装有一连接头的手柄端；在所述连接头上设有与所述外鞘管的腔道相匹配的第二腔道并且该第二腔道的腔道数量与所述外鞘管的腔道数量相同，在所述第二腔道上设有能够与所述闭孔器或者主管固定连接的第二腔道接口。
优选地，在所述外鞘管的外表面上设有一用于指示该外鞘管插入方向的第三刻度，在所述连接头的外表面上上设有第四刻度。
优选地，在所述外鞘管的可弯曲植入端设有一与该外鞘管的其中一个腔道连通的定位球囊并且所述定位球囊通过该腔道连接有充气管路。
优选地，在所述充气管路远离定位球囊的一端安装有注射接头，以及，还在所述充气管路上安装有单向阀。
优选地，所述闭孔器为单腔管或者具有多个腔道的多腔管，该闭孔器前端为植入端，该闭孔器末端为设有一接头的把手端，在所述接头上设有一与所述连接头固定配合使所述闭孔器插入所述外鞘管后与所述外鞘管安装在一起的连接扣。
优选地，所述孔器的植入端为带孔锥头或者带孔圆头或者带孔椭圆头，在所述接头上设有鲁尔接头。
优选地，所述罩体为由至少二根丝线编制组成的三爪形抓取罩体或者圈套形抓取罩体或者剪刀形抓取罩体。
优选地，所述丝体的长度长于所述主管的长度，并且，所述丝体前端为可弯曲端。
优选地，在所述丝体的外表面上设有第五刻度。
优选地，在所述抓取器手柄上设有一与所述丝体相配合用于调节该丝体伸缩长度的调节按钮。
优选地，所述外鞘管、闭孔器、主管均由硬质材料或者半硬质材料或者软质材料制成，例如：所述硬质材料为不锈钢或者铝合金，所述半硬质材料为PA或者PP或者ABS高分子材料，所述软质材料为PU或者PVC或者硅胶。
优选地，所述外鞘管、闭孔器、主管均由前端和末端构成，其中，所述外鞘管、闭孔器、主管的前端均由软质材料或者硬质材料或者半硬质材料制成，所述外鞘管、闭孔器、主管的末端均由硬质材料或者半硬质材料制成，例如：所述硬质材料为为不锈钢或者铝合金，所述半硬质材料为PA或者PP或者ABS高分子材料，所述软质材料为PU或者PVC或者硅胶。
由于采用了上述结构，本发明具有的有益效果如下：
在本发明中，通过外鞘管、闭孔器、主管和抓取器四部分配合工作，外鞘管和闭孔器组装在一起按方向从尿道插入到膀胱，当有尿流出后再插入约1CM,然后退出闭孔器，将主管与抓取器组装在一起后按指示方向插入到外鞘 管中，伸出罩体，操作抓取器手柄控制主管前端使其弯曲，然后伸缩罩体使其套上输尿管支架，最后将外鞘管、主管、抓取器和输尿管支架一起拔出。因此，本发明不需要在膀胱镜的可视辅助下就可以将输尿管支架拔出体外，同时，可以不用在手术室的环境下操作，在病房或者护士站，可以由护士进行拔除输尿管支架操作，即采用本发明进行拔除操作时不受限于手术室进行操作。本发明的外鞘管由于不需要借助膀胱镜从而使进入尿道的器械外径小，对尿道影响更小，可以更好保护尿道，即本发明在拔除操作时对尿道影响较小。在本发明中，如果在外鞘管前端设置定位球囊，当有尿流出后再插入约1CM,再充盈定位球囊然后退出闭孔器，即操作效果更佳。
总之，由传统技术需要在内窥镜下可视拔除输尿管支架改为本发明不需要可视的状态下拔除输尿管支架，从而本发明降低了拔管的技术要求及学习难度，降低了操作人员的要求，由医生操作可以扩大为医生、护士等均可操作，降低了拔管的资源需求，不用占用手术室拔管，不用使用昂贵的内窥镜等；由于不需要用到手术室及需要准备大量的灭菌内窥镜拔管而避免患者需要排队拔管，本发明降低了重复灭菌带来的交差感染风险；本发明通过不需要采用膀胱镜等而大大减小了器械的外径，极大的减少了由于拔管带来的尿道损伤，同时也缓解了插入尿道时患者的不适感；本发明大大的提高了效率及降低了拔除输尿管支架的成本，减轻了患者的经济负担，精神负担，身体创伤；采用本发明进行拔除输尿管支架的操作相当于拔插一次小规格的导尿管操作，患者比较容易接受。
通过以下的描述并结合附图，本发明将变得更加清晰，这些附图用于解释本发明的实施例。
附图说明
图1为本发明的实施例一结构示意图；
图2为本发明的实施例一至四的主管示意图；
图3为本发明的实施例一至四的外鞘管结构示意图；
图4为本发明的实施例一至四的闭孔器结构示意图；
图5为本发明的实施例一至四的抓取器结构示意图；
图6为本发明的实施例二结构示意图；
图7为本发明的实施例三结构示意图；
图8为本发明的实施例四结构示意图。
附图标记说明：100、拔除装置，1、外鞘管，11、连接头，12、第二腔道，13、第二腔道接口，14、第三刻度，15、第四刻度，2、闭孔器，21、接头，22、连接扣，23、鲁尔接头，3、主管，31、主管控制手柄，311、连接座，312、第一腔道，313、卡槽，314、第一腔道接口，315、第二刻度，32、第一刻度，4、抓取器，41、丝体，42、罩体，43、抓取器手柄，44、第五刻度，45、调节按钮，5、调节结构，51、调节拉扣，52、拉线，6、CMO摄像头，7、摄像接头，8、电源接头，9、定位球囊，10、充气管路，101、注射接头，102、单向阀，200、套管，300、伸缩器。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例一：
请参阅图1至图5所示，一种用于拔除输尿管支架的拔除装置，该拔除装置100包括外鞘管1；其还包括用于插入外鞘管1与外鞘管1安装在一起后能够从尿道插入到膀胱的闭孔器2；其还包括主管3和用于与所述主管3安装 在一起后能够插入到外鞘管1中的抓取器4；其中，在所述主管3末端设有一用于控制所述主管3前端弯曲的调节结构5，以及，所述抓取器4包括前端能够穿过所述主管3的丝体41，在该丝体41前端安装有用于抓取输尿管支架的罩体42，在该丝体41末端安装有用于与所述主管3末端安装配合的抓取器手柄43。
所述调节结构5包括调节拉扣51和拉线52，所述调节拉扣51安装在所述主管3末端，所述拉线52一端固定在所述主管3前端，所述拉线52另一端固定在所述调节拉扣51上。
所述主管3为单腔管或者具有多个腔道的多腔管，该主管3前端为植入端，该主管3末端为安装有主管控制手柄31的手柄端；所述主管控制手柄31包括安装在所述主管3末端的连接座311，在所述连接座311内设有与所述主管3的腔道相匹配的第一腔道312且该第一腔道312的腔道数量与所述主管3的腔道数量相同，还在所述连接座311上设有一用于与所述调节拉扣51配合调整所述拉线52拉紧力的卡槽313，并且，所述调节拉扣51安装在所述卡槽313上；在所述连接座311的末端设有能够与所述外鞘管1固定连接的第一腔道接口314。
在所述主管3的外表面上设有用于指示该主管3插入方向的第一刻度32，在所述连接座311的外表面上设有用于指示所述主管3的植入端弯曲程度的第二刻度315。
所述主管3植入端为圆形或者锥形或者椭圆形的可弯曲端；所述主管3植入端的弯曲角度为0度至180度，例如：30度、60度、90度、120度、150度。
所述外鞘管1为单腔管或者具有多个腔道的多腔管，所述外鞘管1的前端为可弯曲植入端，所述外鞘管1的末端为安装有一连接头11的手柄端；在所述连接头11上设有与所述外鞘管1的腔道相匹配的第二腔道12并且该第 二腔道12的腔道数量与所述外鞘管1的腔道数量相同，在所述第二腔道12上设有能够与所述闭孔器2或者主管3固定连接的第二腔道接口13。
在所述外鞘管1的外表面上设有一用于指示该外鞘管1插入方向的第三刻度14，在所述连接头11的外表面上上设有第四刻度15。
所述闭孔器2为单腔管或者具有多个腔道的多腔管，该闭孔器2前端为植入端，该闭孔器2末端为设有一接头21的把手端，在所述接头21上设有一与所述连接头11固定配合使所述闭孔器2插入所述外鞘管1后与所述外鞘管1安装在一起的连接扣22。
所述孔器2的植入端为带孔锥头或者带孔圆头或者带孔椭圆头，在所述接头21上设有鲁尔接头23。
所述罩体42为由至少二根丝线编制组成的三爪形抓取罩体或者圈套形抓取罩体或者剪刀形抓取罩体。
所述丝体41的长度长于所述主管3的长度，并且，所述丝体41前端为可弯曲端。
在所述丝体41的外表面上设有第五刻度44。
在所述抓取器手柄43上设有一与所述丝体41相配合用于调节该丝体41伸缩长度的调节按钮45。
所述外鞘管1、闭孔器2、主管3均由硬质材料或者半硬质材料或者软质材料制成，例如：所述硬质材料为不锈钢或者铝合金，所述半硬质材料为PA或者PP或者ABS高分子材料，所述软质材料为PU或者PVC或者硅胶。
所述外鞘管1、闭孔器2、主管3均由前端和末端构成，其中，所述外鞘管1、闭孔器2、主管3的前端均由软质材料或者硬质材料或者半硬质材料制成，所述外鞘管1、闭孔器2、主管3的末端均由硬质材料或者半硬质材料制成，例如：所述硬质材料为不锈钢或者铝合金，所述半硬质材料为PA或者PP或者ABS高分子材料，所述软质材料为PU或者PVC或者硅胶。
本实施例具体使用时，该拔除装置100由外鞘管1、闭孔器2、主管3和抓取器4四部分构成，它们进行配合工作。其工作过程为：首先，外鞘管1和闭孔器2组装在一起按方向从尿道插入到膀胱，当有尿流出后再插入约1CM，然后退出闭孔器2；其次，将主管3与抓取器4组装在一起后按指示方向插入到外鞘管1中，伸出罩体42，操作调节拉扣51与拉线配合控制主管3前端使其弯曲；然后，操作调节按钮45控制罩体42伸缩从而使其套上输尿管支架；最后，将外鞘管1、主管3、抓取器4和输尿管支架一起拔出即可。
实施例二：
参阅图2-6所示，本实施例与实施例一的区别在于：在所述主管3的前端设有CMO摄像头6，在所述主管3的末端设有摄像接头7，并且，所述摄像接头7的一端通过导电线与所述CMO摄像头6连接，所述所述摄像接头7的另一端通过导电线与一外接摄像系统连接，其中，所述CMO摄像头6、摄像接头7为固定安装在所述主管上，或者，所述CMO摄像头6、摄像接头7为可拆卸安装在所述主管上。
本实施例具体使用时，该拔除装置100由外鞘管1、闭孔器2、主管3和抓取器4四部分构成，它们进行配合工作。其工作过程为：首先，外鞘管1和闭孔器2组装在一起按方向从尿道插入到膀胱，当有尿流出后再插入约1CM，然后退出闭孔器2；其次，将CMO摄像头6、摄像接头7分别安装在主管3的前端的末端，再将主管3与抓取器4组装在一起后按指示方向插入到外鞘管1中，伸出罩体42，操作调节拉扣51与拉线配合控制主管3前端使其弯曲；然后，启动外接摄像系统，通过CMO摄像头6可视化操作调节按钮45控制罩体42伸缩从而使其套上输尿管支架；最后，将外鞘管1、主管3、抓取器4和输尿管支架一起拔出即可。
实施例三：
参阅图2-5、7所示，本实施例与实施例一的区别在于：在所述抓取器手 柄43上设有电源接头8，所述电源接头8的一端与一外部电源连接，所述电源接头8的另一端与所述丝体41连接用于给该丝体41通电进行切割或者电凝；其中，所述丝体41、罩体42均由导电材料制成。
还在所述丝体41上可拆卸套装有套管200，在所述抓取器手柄43上可拆卸设有伸缩器300，所述丝体41、罩体42均由铜合金材料制成，或者，所述丝体41、罩体42均由铝合金材料制成，或者，所述丝体41、罩体42均由导电塑料制成，或者，所述丝体41、罩体42均由记忆合金材料制成。使用时，将套管200由丝体41的前端往末端方向套在丝体41上，再将丝体41的末端与伸缩器300连接，通过伸缩器300控制丝体41的伸缩使其收缩在套管200内或者伸出套管200外。
本实施例具体使用时，该拔除装置100由外鞘管1、闭孔器2、主管3和抓取器4四部分构成，它们进行配合工作。其工作过程为：首先，外鞘管1和闭孔器2组装在一起按方向从尿道插入到膀胱，当有尿流出后再插入约1CM，然后退出闭孔器2；其次，将抓取器4套入套管200，再将套管200连同抓取器4与主管3组装在一起后按指示方向插入到外鞘管1中，通过伸缩器300控制丝体41的伸缩，进而伸出罩体42，或者，直接将抓取器4与主管3组装在一起后按指示方向插入到外鞘管1中，并伸出罩体42，再操作调节拉扣51与拉线配合控制主管3前端使其弯曲，操作调节按钮45控制罩体42伸缩从而使其套上输尿管支架；然后，将电源接头8与外部电源连通，利用丝体41、罩体42的导电性能对膀胱局部组织进行切割或者电凝处理；最后，将外鞘管1、主管3、抓取器4和输尿管支架一起拔出即可。
实施例四：
参阅图2-5、8所示，本实施例与实施例一的区别在于：在所述外鞘管1的可弯曲植入端设有一与该外鞘管1的其中一个腔道连通的定位球囊9并且所述定位球囊9通过该腔道连接有充气管路10。
在所述充气管路10远离定位球囊9的一端安装有注射接头101，以及，还在所述充气管路10上安装有单向阀102。
本实施例具体使用时，该拔除装置100由外鞘管1、闭孔器2、主管3和抓取器4四部分构成，它们进行配合工作。其工作过程为：首先，外鞘管1和闭孔器2组装在一起按方向从尿道插入到膀胱，当有尿流出后再插入约1CM；其次，通过注射接头101依次经单向阀102、外鞘管1腔道向定位球囊9充气，在充盈定位球囊9后再退出闭孔器2，操作效果更佳，减轻患者的不适感；然后，将主管3与抓取器4组装在一起后按指示方向插入到外鞘管1中，伸出罩体42，操作调节拉扣51与拉线配合控制主管3前端使其弯曲，操作调节按钮45控制罩体42伸缩从而使其套上输尿管支架；最后，将外鞘管1、主管3、抓取器4和输尿管支架一起拔出即可。
综上所述，本发明采用上述的结构，不受限于手术室进行输尿管支架拔除操作并且拔除操作对尿道影响较小，在不采用膀胱镜的辅助操作下也能够实现拔除输尿管支架，除了适用于医生操作还可以由护士操作。
以上对本发明的较佳实施例进行了描述。需要理解的是，本发明并不局限于上述特定实施方式，其中未尽详细描述的设备和结构应该理解为用本领域中的普通方式予以实施；任何熟悉本领域的技术人员，在不脱离本发明技术方案范围情况下，都可利用上述揭示的方法和技术内容对本发明技术方案做出许多可能的变动和修饰，或修改为等同变化的等效实施例，这并不影响本发明的实质内容。因此，凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化及修饰，均仍属于本发明技术方案保护的范围内。

Claims (20)

  1. 一种用于拔除输尿管支架的拔除装置，该拔除装置(100)包括外鞘管(1)；其特征在于：其还包括用于插入外鞘管(1)与外鞘管(1)安装在一起后能够从尿道插入到膀胱的闭孔器(2)；其还包括主管(3)和用于与所述主管(3)安装在一起后能够插入到外鞘管(1)中的抓取器(4)；其中，在所述主管(3)末端设有一用于控制所述主管(3)前端弯曲的调节结构(5)，以及，所述抓取器(4)包括前端能够穿过所述主管(3)的丝体(41)，在该丝体(41)前端安装有用于抓取输尿管支架的罩体(42)，在该丝体(41)末端安装有用于与所述主管(3)末端安装配合的抓取器手柄(43)。
  2. 根据权利要求1所述的一种用于拔除输尿管支架的拔除装置，其特征在于：在所述主管(3)的前端设有CMO摄像头(6)，在所述主管(3)的末端设有摄像接头(7)，并且，所述摄像接头(7)的一端通过导电线与所述CMO摄像头(6)连接，所述所述摄像接头(7)的另一端通过导电线与一外接摄像系统连接，其中，所述CMO摄像头(6)、摄像接头(7)为固定安装在所述主管上，或者，所述CMO摄像头(6)、摄像接头(7)为可拆卸安装在所述主管上。
  3. 根据权利要求1所述的一种用于拔除输尿管支架的拔除装置，其特征在于：在所述抓取器手柄(43)上设有电源接头(8)，所述电源接头(8)的一端与一外部电源连接，所述电源接头(8)的另一端与所述丝体(41)连接用于给该丝体(41)通电进行切割或者电凝；其中，所述丝体(41)、罩体(42)均由导电材料制成。
  4. 根据权利要求3所述的一种用于拔除输尿管支架的拔除装置，其特征在于：还在所述丝体(41)上可拆卸套装有套管(200)，在所述抓取器手柄(43)上可拆卸设有伸缩器(300)，所述丝体(41)、罩体(42)均由铜合金材料制成，或者，所述丝体(41)、罩体(42)均由铝合金材料制成，或 者，所述丝体(41)、罩体(42)均由导电塑料制成。
  5. 根据权利要求1所述的一种用于拔除输尿管支架的拔除装置，其特征在于：所述调节结构(5)包括调节拉扣(51)和拉线(52)，所述调节拉扣(51)安装在所述主管(3)末端，所述拉线(52)一端固定在所述主管(3)前端，所述拉线(52)另一端固定在所述调节拉扣(51)上。
  6. 根据权利要求5所述的一种用于拔除输尿管支架的拔除装置，其特征在于：所述主管(3)为单腔管或者具有多个腔道的多腔管，该主管(3)前端为植入端，该主管(3)末端为安装有主管控制手柄(31)的手柄端；所述主管控制手柄(31)包括安装在所述主管(3)末端的连接座(311)，在所述连接座(311)内设有与所述主管(3)的腔道相匹配的第一腔道(312)且该第一腔道(312)的腔道数量与所述主管(3)的腔道数量相同，还在所述连接座(311)上设有一用于与所述调节拉扣(51)配合调整所述拉线(52)拉紧力的卡槽(313)，并且，所述调节拉扣(51)安装在所述卡槽(313)上；在所述连接座(311)的末端设有能够与所述外鞘管(1)固定连接的第一腔道接口(314)。
  7. 根据权利要求6所述的一种用于拔除输尿管支架的拔除装置，其特征在于：在所述主管(3)的外表面上设有用于指示该主管(3)插入方向的第一刻度(32)，在所述连接座(311)的外表面上设有用于指示所述主管(3)的植入端弯曲程度的第二刻度(315)。
  8. 根据权利要求7所述的一种用于拔除输尿管支架的拔除装置，其特征在于：所述主管(3)植入端为圆形或者锥形或者椭圆形的可弯曲端，所述主管(3)植入端的弯曲角度为0度至180度。
  9. 根据权利要求1所述的一种用于拔除输尿管支架的拔除装置，其特征在于：所述外鞘管(1)为单腔管或者具有多个腔道的多腔管，所述外鞘管(1)的前端为可弯曲植入端，所述外鞘管(1)的末端为安装有一连接头(11)的 手柄端；在所述连接头(11)上设有与所述外鞘管(1)的腔道相匹配的第二腔道(12)并且该第二腔道(12)的腔道数量与所述外鞘管(1)的腔道数量相同，在所述第二腔道(12)上设有能够与所述闭孔器(2)或者主管(3)固定连接的第二腔道接口(13)。
  10. 根据权利要求9所述的一种用于拔除输尿管支架的拔除装置，其特征在于：在所述外鞘管(1)的外表面上设有一用于指示该外鞘管(1)插入方向的第三刻度(14)，在所述连接头(11)的外表面上上设有第四刻度(15)。
  11. 根据权利要求9所述的一种用于拔除输尿管支架的拔除装置，其特征在于：在所述外鞘管(1)的可弯曲植入端设有一与该外鞘管(1)的其中一个腔道连通的定位球囊(9)并且所述定位球囊(9)通过该腔道连接有充气管路(10)。
  12. 根据权利要求11所述的一种用于拔除输尿管支架的拔除装置，其特征在于：在所述充气管路(10)远离定位球囊(9)的一端安装有注射接头(101)，以及，还在所述充气管路(10)上安装有单向阀(102)。
  13. 根据权利要求9所述的一种用于拔除输尿管支架的拔除装置，其特征在于：所述闭孔器(2)为单腔管或者具有多个腔道的多腔管，该闭孔器(2)前端为植入端，该闭孔器(2)末端为设有一接头(21)的把手端，在所述接头(21)上设有一与所述连接头(11)固定配合使所述闭孔器(2)插入所述外鞘管(1)后与所述外鞘管(1)安装在一起的连接扣(22)。
  14. 根据权利要求13所述的一种用于拔除输尿管支架的拔除装置，其特征在于：所述孔器(2)的植入端为带孔锥头或者带孔圆头或者带孔椭圆头，在所述接头(21)上设有鲁尔接头(23)。
  15. 根据权利要求1至14任一项所述的一种用于拔除输尿管支架的拔除装置，其特征在于：所述罩体(42)为由至少二根丝线编制组成的三爪形抓取罩体或者圈套形抓取罩体或者剪刀形抓取罩体。
  16. 根据权利要求1至14任一项所述的一种用于拔除输尿管支架的拔除装置，其特征在于：所述丝体(41)的长度长于所述主管(3)的长度，并且，所述丝体(41)前端为可弯曲端。
  17. 根据权利要求16所述的一种用于拔除输尿管支架的拔除装置，其特征在于：在所述丝体(41)的外表面上设有第五刻度(44)。
  18. 根据权利要求16所述的一种用于拔除输尿管支架的拔除装置，其特征在于：在所述抓取器手柄(43)上设有一与所述丝体(41)相配合用于调节该丝体(41)伸缩长度的调节按钮(45)。
  19. 根据权利要求1所述的一种用于拔除输尿管支架的拔除装置，其特征在于：所述外鞘管(1)、闭孔器(2)、主管(3)均由硬质材料或者半硬质材料或者软质材料制成。
  20. 根据权利要求1所述的一种用于拔除输尿管支架的拔除装置，其特征在于：所述外鞘管(1)、闭孔器(2)、主管(3)均由前端和末端构成，其中，所述外鞘管(1)、闭孔器(2)、主管(3)的前端均由软质材料或者硬质材料或者半硬质材料制成，所述外鞘管(1)、闭孔器(2)、主管(3)的末端均由硬质材料或者半硬质材料制成。
PCT/CN2021/074759 2020-02-23 2021-02-02 一种用于拔除输尿管支架的拔除装置 WO2021164535A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010109977.2A CN111134921A (zh) 2020-02-23 2020-02-23 一种用于拔除输尿管支架的拔除装置
CN202010109977.2 2020-02-23

Publications (1)

Publication Number Publication Date
WO2021164535A1 true WO2021164535A1 (zh) 2021-08-26

Family

ID=70527812

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/074759 WO2021164535A1 (zh) 2020-02-23 2021-02-02 一种用于拔除输尿管支架的拔除装置

Country Status (2)

Country Link
CN (3) CN111134921A (zh)
WO (1) WO2021164535A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113893002A (zh) * 2021-10-08 2022-01-07 河北医科大学第二医院 取石网篮及其操作方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111134921A (zh) * 2020-02-23 2020-05-12 广州维力医疗器械股份有限公司 一种用于拔除输尿管支架的拔除装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101849866A (zh) * 2010-05-14 2010-10-06 卢振权 腹腔镜下置入输尿管支架用斑马导丝引导器
CN107666869A (zh) * 2015-05-27 2018-02-06 科洛普拉斯特公司 抓紧工具
CN108403267A (zh) * 2018-03-26 2018-08-17 湖南瀚德微创医疗科技有限公司 一种输尿管支架套装
US20180289519A1 (en) * 2014-10-23 2018-10-11 Michael Mooreville Stent Removal Snare and Dilator
CN108784897A (zh) * 2017-04-28 2018-11-13 柯惠有限合伙公司 支架递送系统
CN108836587A (zh) * 2018-05-16 2018-11-20 张晨辉 一种输尿管支架管专用拔除器
CN209808658U (zh) * 2018-12-08 2019-12-20 梁平 腹腔镜手术输尿管支架管置入钳
CN111134921A (zh) * 2020-02-23 2020-05-12 广州维力医疗器械股份有限公司 一种用于拔除输尿管支架的拔除装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202654270U (zh) * 2012-03-30 2013-01-09 景德善 输尿管内支架管无创拔管器
CN204683849U (zh) * 2015-02-26 2015-10-07 陈琦 一种输尿管支架取出装置
CN204766960U (zh) * 2015-06-05 2015-11-18 河南省肿瘤医院 输尿管支架管抓捕器
US20200397558A1 (en) * 2016-04-11 2020-12-24 Baylor College Of Medicine Removable ureteral stents and methods of use of the same
CN209060261U (zh) * 2017-12-29 2019-07-05 广州维力医疗器械股份有限公司 一种用于气管插管的可视可调导芯
CN209827117U (zh) * 2019-03-14 2019-12-24 中国医科大学附属盛京医院 一种输尿管支架取出装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101849866A (zh) * 2010-05-14 2010-10-06 卢振权 腹腔镜下置入输尿管支架用斑马导丝引导器
US20180289519A1 (en) * 2014-10-23 2018-10-11 Michael Mooreville Stent Removal Snare and Dilator
CN107666869A (zh) * 2015-05-27 2018-02-06 科洛普拉斯特公司 抓紧工具
CN108784897A (zh) * 2017-04-28 2018-11-13 柯惠有限合伙公司 支架递送系统
CN108403267A (zh) * 2018-03-26 2018-08-17 湖南瀚德微创医疗科技有限公司 一种输尿管支架套装
CN108836587A (zh) * 2018-05-16 2018-11-20 张晨辉 一种输尿管支架管专用拔除器
CN209808658U (zh) * 2018-12-08 2019-12-20 梁平 腹腔镜手术输尿管支架管置入钳
CN111134921A (zh) * 2020-02-23 2020-05-12 广州维力医疗器械股份有限公司 一种用于拔除输尿管支架的拔除装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113893002A (zh) * 2021-10-08 2022-01-07 河北医科大学第二医院 取石网篮及其操作方法

Also Published As

Publication number Publication date
CN215459020U (zh) 2022-01-11
CN112656559A (zh) 2021-04-16
CN112656559B (zh) 2024-07-09
CN111134921A (zh) 2020-05-12

Similar Documents

Publication Publication Date Title
US7320710B2 (en) Draining bodily fluid
US8343170B2 (en) Method and device for extracting objects from the body
US8287602B2 (en) Urinary stent
US7862542B1 (en) Flaccid tubular membrane and insertion appliance for surgical intubation and method
WO2021164535A1 (zh) 一种用于拔除输尿管支架的拔除装置
JPH0271764A (ja) 連鎖的経皮の拡張法のための器具
EP0862480B1 (en) System or apparatus for treating the ureter and/or pyelo-ureter junction
CN202654270U (zh) 输尿管内支架管无创拔管器
US8105318B2 (en) Introducer and valve cap for anastomosis device
CN102363060B (zh) 一种输尿管支架管
CN213465235U (zh) 一种带金属支架的胆道穿刺引流管
CN213787314U (zh) 一种用于困难尿道可视辅助导尿装置
CN210541659U (zh) 输尿管软镜取石手术用输送鞘芯
CN111529001A (zh) 一种带金属支架的胆道穿刺引流管
CN105147372B (zh) 一种女性体内双j管拔除器
CN213075591U (zh) 一种输尿管硬镜
CN220530187U (zh) 一种磁吸输尿管支架拔除装置
CN220142393U (zh) 磁吸拔管器以及磁吸支架套装组件
CN212346833U (zh) 一种输尿管支架拔除器
WO2021203766A1 (zh) 一种医用导管及医用系统
CN214762515U (zh) 一种胆道减压装置
CN102580224A (zh) 一种导尿管和包括该导尿管的输尿管支架装置
CN211485112U (zh) 一种简易取输尿管支架器械
CN216257022U (zh) 一种多用途的便携式、硬管式可视尿道镜
CN208436233U (zh) 一种金属胆管扩张球囊释放器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21757985

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 02/02/2023)

122 Ep: pct application non-entry in european phase

Ref document number: 21757985

Country of ref document: EP

Kind code of ref document: A1