CN215459020U - A pull out device for pulling out ureteral stent - Google Patents
A pull out device for pulling out ureteral stent Download PDFInfo
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- CN215459020U CN215459020U CN202120272233.2U CN202120272233U CN215459020U CN 215459020 U CN215459020 U CN 215459020U CN 202120272233 U CN202120272233 U CN 202120272233U CN 215459020 U CN215459020 U CN 215459020U
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- sheath tube
- extracting
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- 210000003708 urethra Anatomy 0.000 claims abstract description 23
- 238000005452 bending Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 26
- 238000000605 extraction Methods 0.000 claims description 24
- 239000007779 soft material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 238000002513 implantation Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000009297 electrocoagulation Methods 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 210000003128 head Anatomy 0.000 description 6
- 210000002700 urine Anatomy 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002861 polymer material Substances 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 210000005077 saccule Anatomy 0.000 description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 2
- 230000008733 trauma Effects 0.000 description 2
- 210000000626 ureter Anatomy 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 206010046454 Urethral injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005068 bladder tissue Anatomy 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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- 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
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Prostheses (AREA)
Abstract
The utility model discloses a removing device for removing a ureteral stent, which comprises an outer sheath tube; the device also comprises an obturator which is used for inserting the outer sheath tube and can be inserted into the bladder from the urethra after being installed together with the outer sheath tube; the sheath tube is characterized by also comprising a main tube and a grabber which is used for being inserted into the outer sheath tube after being installed together with the main tube; the device comprises a main pipe, a grabber and a handle, wherein the tail end of the main pipe is provided with an adjusting structure for controlling the bending of the front end of the main pipe, the grabber comprises a filament body, the front end of the filament body can penetrate through the main pipe, the front end of the filament body is provided with a cover body for grabbing a ureteral stent, and the tail end of the filament body is provided with the grabber handle which is matched with the tail end of the main pipe in an installing mode. The ureteral stent removing device is not limited to the ureteral stent removing operation in an operating room, the ureteral stent removing operation has small influence on the urethra, the ureteral stent can be removed without the auxiliary operation of a cystoscope, and the ureteral stent removing device is suitable for doctor operation and can be operated by a nurse.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to a pulling device for pulling out a ureteral stent.
Background
Urology often embeds ureteral stents in the ureter of a human body according to the needs of treatment, wherein the ureteral stents are also called double J tubes, DJ tubes or pigtail tubes. The ureteral stent needs to be pulled out of the human body through the urethra after being kept in place for a period of time. At present, the common practice in hospitals is to send a patient to an operating room, insert a cystoscope from the urethra by a doctor, reach the bladder, observe through an eyepiece and find a ureteral stent, then extend an operating forceps into a working channel of the cystoscope, and then clamp the ureteral stent and pull out the ureteral stent.
The traditional tube drawing method has the following problems: 1. the ureteral stent can be pulled out of a body only with the assistance of a cystoscope, the operation is inconvenient, the operation environment is limited only in an operating room, and because the operating room is nervous and a professional doctor is busy, a patient who pulls out the ureteral stent usually needs to queue for reservation, and the cost for pulling out the ureter is high; 2. the cystoscope is inserted from the urethra, and has a certain volume, so that the cystoscope has a large influence on the urethra and is easy to damage the urethra, namely the operation process is easy to damage the urethra, and great psychological pressure or trauma is brought to a patient; 3. cystoscopes are expensive, and are used repeatedly in a sterile manner, and hospitals are required to be equipped with a certain number of expensive cystoscopes according to the operation amount of the day.
How to solve the above problems is a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a ureteral stent removing device which is not limited by an operating room for ureteral stent removing operation and has small influence on a urethra in the removing operation, the ureteral stent removing device can remove the ureteral stent without auxiliary operation of a cystoscope, and the removing device can be operated by a nurse besides being suitable for doctor operation.
In order to achieve the purpose, the utility model provides the following technical scheme:
an extraction device for extracting a ureteral stent, the extraction device comprising an outer sheath; the device also comprises an obturator which is used for inserting the outer sheath tube and can be inserted into the bladder from the urethra after being installed together with the outer sheath tube; the sheath tube is characterized by also comprising a main tube and a grabber which is used for being inserted into the outer sheath tube after being installed together with the main tube; the device comprises a main pipe, a grabber and a handle, wherein the tail end of the main pipe is provided with an adjusting structure for controlling the bending of the front end of the main pipe, the grabber comprises a filament body, the front end of the filament body can penetrate through the main pipe, the front end of the filament body is provided with a cover body for grabbing a ureteral stent, and the tail end of the filament body is provided with the grabber handle which is matched with the tail end of the main pipe in an installing mode.
Preferably, a CMO camera is arranged at the front end of the main pipe, a camera connector is arranged at the tail end of the main pipe, one end of the camera connector is connected with the CMO camera through a conducting wire, and the other end of the camera connector is connected with an external camera system through a conducting wire, wherein the CMO camera and the camera connector are fixedly mounted on the main pipe, or the CMO camera and the camera connector are detachably mounted on the main pipe.
Preferably, a power supply connector is arranged on the gripper handle, one end of the power supply connector is connected with an external power supply, and the other end of the power supply connector is connected with the filament body and used for electrifying the filament body for cutting or electrocoagulation; wherein, the silk body and the cover body are both made of conductive materials.
Preferably, the wire body is detachably sleeved with a sleeve, the gripper handle is detachably provided with a telescopic device, the wire body and the cover body are both made of copper alloy materials, or the wire body and the cover body are both made of aluminum alloy materials, or the wire body and the cover body are both made of conductive plastics, or the wire body and the cover body are both made of memory alloy materials.
Preferably, the adjusting structure comprises an adjusting pull buckle and a pull wire, the adjusting pull buckle is installed at the tail end of the main pipe, one end of the pull wire is fixed at the front end of the main pipe, and the other end of the pull wire is fixed on the adjusting pull buckle.
Preferably, the main tube is a single-lumen tube or a multi-lumen tube with a plurality of lumens, the front end of the main tube is an implantation end, and the tail end of the main tube is a handle end provided with a main tube control handle; the main pipe control handle comprises a connecting seat arranged at the tail end of the main pipe, a first cavity matched with the cavity of the main pipe is arranged in the connecting seat, the number of the cavities of the first cavity is the same as that of the cavities of the main pipe, a clamping groove used for adjusting the tension force of the pull wire in a matching way with the adjusting pull buckle is arranged on the connecting seat, and the adjusting pull buckle is arranged on the clamping groove; the tail end of the connecting seat is provided with a first cavity interface which can be fixedly connected with the outer sheath tube.
Preferably, a first scale for indicating the insertion direction of the main pipe is arranged on the outer surface of the main pipe, and a second scale for indicating the bending degree of the implanting end of the main pipe is arranged on the outer surface of the connecting seat.
Preferably, the main tube implantation end is a round or conical or oval bendable end; the bending angle of the main tube implantation end is 0 to 180 degrees, for example: 30 degrees, 60 degrees, 90 degrees, 120 degrees, 150 degrees.
Preferably, the outer sheath tube is a single lumen tube or a multi-lumen tube with a plurality of lumens, the front end of the outer sheath tube is a bendable implanting end, and the tail end of the outer sheath tube is a handle end provided with a connector; the connector is provided with second cavities matched with the cavities of the outer sheath, the number of the cavities of the second cavities is the same as that of the cavities of the outer sheath, and second cavity interfaces which can be fixedly connected with the obturator or the main pipe are arranged on the second cavities.
Preferably, a third scale for indicating the insertion direction of the outer sheath tube is arranged on the outer surface of the outer sheath tube, and a fourth scale is arranged on the outer surface of the connector.
Preferably, a positioning balloon communicated with one cavity channel of the outer sheath tube is arranged at the bendable implanting end of the outer sheath tube, and the positioning balloon is connected with an inflation pipeline through the cavity channel.
Preferably, an injection joint is installed at one end of the inflation pipeline far away from the positioning balloon, and a one-way valve is further installed on the inflation pipeline.
Preferably, the obturator is a single lumen tube or a multi-lumen tube with a plurality of lumens, the front end of the obturator is an implanting end, the tail end of the obturator is a handle end provided with a connector, and the connector is provided with a connecting buckle which is fixedly matched with the connector so that the obturator is inserted into the outer sheath tube and then is installed with the outer sheath tube.
Preferably, the implanting end of the hole device is a perforated conical head, a perforated round head or a perforated elliptical head, and a luer joint is arranged on the joint.
Preferably, the cover body is a three-jaw-shaped grabbing cover body or a snare-shaped grabbing cover body or a scissors-shaped grabbing cover body which is formed by weaving at least two silk threads.
Preferably, the length of the filament is longer than that of the main tube, and the filament front end is a bendable end.
Preferably, a fifth scale is provided on the outer surface of the filament body.
Preferably, an adjusting button matched with the filament body and used for adjusting the telescopic length of the filament body is arranged on the grabber handle.
Preferably, the sheath tube, the obturator and the main tube are made of hard materials or semi-hard materials or soft materials, such as: the hard material is stainless steel or aluminum alloy, the semi-hard material is PA or PP or ABS high polymer material, and the soft material is PU or PVC or silica gel.
Preferably, the sheath tube, the obturator and the main tube are all composed of a front end and a tail end, wherein the front end of the sheath tube, the obturator and the main tube is made of a soft material or a hard material or a semi-hard material, and the tail end of the sheath tube, the obturator and the main tube is made of a hard material or a semi-hard material, such as: the hard material is stainless steel or aluminum alloy, the semi-hard material is PA or PP or ABS high polymer material, and the soft material is PU or PVC or silica gel.
Due to the adoption of the structure, the utility model has the following beneficial effects:
the utility model is characterized in that an outer sheath tube, an obturator, a main tube and a grabber are matched to work, the outer sheath tube and the obturator are assembled together and inserted into a bladder from a urethra according to the direction, when urine flows out, about 1CM is inserted, then the obturator is withdrawn, the main tube and the grabber are assembled together and then inserted into an outer sheath tube according to the indication direction, a cover body is extended out, a handle of the grabber is operated to control the front end of the main tube to be bent, then the cover body is stretched to sleeve a ureteral stent, and finally the outer sheath tube, the main tube, the grabber and the ureteral stent are pulled out together. Therefore, the ureteral stent can be pulled out of the body without the visual assistance of a cystoscope, and meanwhile, the operation of pulling out the ureteral stent can be carried out by a nurse in a ward or a nurse station without the operation in the environment of an operating room, namely, the operation is not limited to the operation in the operating room when the ureteral stent is pulled out by adopting the ureteral stent pulling-out device. The outer sheath tube of the utility model has small outer diameter of the apparatus entering the urethra without the aid of a cystoscope, has less influence on the urethra and can better protect the urethra, namely, the utility model has less influence on the urethra during the removal operation. In the utility model, if the positioning saccule is arranged at the front end of the outer sheath tube, about 1CM is inserted after urine flows out, the positioning saccule is filled again, and then the obturator exits, thus the operation effect is better.
In a word, the ureteral stent is pulled out under the condition that the traditional technology needs to be visible under an endoscope instead of the ureteral stent which is pulled out under the condition that the traditional technology does not need to be visible, so that the technical requirements and the learning difficulty of the tube pulling are reduced, the requirements of operators are reduced, the operation of doctors can be expanded to the operation of doctors, nurses and the like, the resource requirements of the tube pulling are reduced, the tube pulling in an operating room is not occupied, and expensive endoscopes and the like are not used; the utility model reduces the cross infection risk caused by repeated sterilization because the operating room is not needed and a large amount of sterilized endoscope drawing tubes are needed to be prepared, thereby avoiding the need of queuing and drawing tubes for patients; the utility model greatly reduces the outer diameter of the instrument without cystoscope, greatly reduces the urethral injury caused by tube drawing, and simultaneously relieves the discomfort of patients when inserting into the urethra; the utility model greatly improves the efficiency, reduces the cost for removing the ureteral stent, and lightens the economic burden, the mental burden and the body trauma of a patient; the operation of removing the ureteral stent by adopting the utility model is equivalent to the operation of pulling and inserting a small-sized catheter, and is easier to be accepted by patients.
The utility model will become more apparent from the following description when taken in conjunction with the accompanying drawings, which illustrate embodiments of the utility model.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a main pipe according to one to four embodiments of the present invention;
FIG. 3 is a schematic diagram of an outer sheath structure according to one to four embodiments of the present invention;
FIG. 4 is a schematic structural diagram of a obturator according to one to four embodiments of the present invention;
FIG. 5 is a schematic structural diagram of a gripper according to one embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 7 is a schematic diagram of a third embodiment of the present invention;
fig. 8 is a schematic structural diagram of a fourth embodiment of the present invention.
Description of reference numerals: 100. the device comprises a pulling device, 1, an outer sheath tube, 11, a connector, 12, a second cavity, 13, a second cavity interface, 14, a third scale, 15, a fourth scale, 2, a hole closing device, 21, a connector, 22, a connecting buckle, 23, a luer connector, 3, a main pipe, 31, a main pipe control handle, 311, a connecting seat, 312, a first cavity, 313, a clamping groove, 314, a first cavity interface, 315, a second scale, 32, a first scale, 4, a grabber, 41, a filament, 42, a cover body, 43, a grabber handle, 44, a fifth scale, 45, an adjusting button, 5, an adjusting structure, 51, an adjusting buckle, 52, a stay wire, 6, a CMO camera, 7, a camera connector, 8, a power connector, 9, a positioning balloon, 10, an inflation pipeline, 101, an injection connector, 102, a one-way valve, 200, a sleeve, 300 and a telescopic device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1 to 5, an extraction device 100 for extracting a ureteral stent includes an outer sheath 1; the device also comprises an obturator 2 which is used for inserting the outer sheath tube 1 and can be inserted into the bladder from the urethra after the outer sheath tube 1 is installed together; the sheath tube is characterized by further comprising a main tube 3 and a grabber 4 which is used for being inserted into the outer sheath tube 1 after being installed together with the main tube 3; the tail end of the main tube 3 is provided with an adjusting structure 5 for controlling the bending of the front end of the main tube 3, the grabber 4 comprises a filament 41 with the front end capable of penetrating through the main tube 3, the front end of the filament 41 is provided with a cover body 42 for grabbing the ureteral stent, and the tail end of the filament 41 is provided with a grabber handle 43 for being matched with the tail end of the main tube 3.
The adjusting structure 5 comprises an adjusting pull buckle 51 and a pull wire 52, the adjusting pull buckle 51 is installed at the tail 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 on the adjusting pull buckle 51.
The main tube 3 is a single-cavity tube or a multi-cavity tube with a plurality of cavities, the front end of the main tube 3 is an implantation end, and the tail end of the main tube 3 is a handle end provided with a main tube control handle 31; the main pipe control handle 31 comprises a connecting seat 311 arranged at the tail end of the main pipe 3, a first cavity 312 matched with the cavity of the main pipe 3 is arranged in the connecting seat 311, the number of the cavities of the first cavity 312 is the same as that of the cavities of the main pipe 3, a clamping groove 313 used for matching with the adjusting pull buckle 51 to adjust the tension of the pull line 52 is arranged on the connecting seat 311, and the adjusting pull buckle 51 is arranged on the clamping groove 313; a first channel interface 314 capable of being fixedly connected with the outer sheath tube 1 is arranged at the tail end of the connecting seat 311.
A first scale 32 for indicating the insertion direction of the main tube 3 is provided on the outer surface of the main tube 3, and a second scale 315 for indicating the bending degree of the implanting end of the main tube 3 is provided on the outer surface of the connection holder 311.
The implantation end of the main pipe 3 is a round, conical or elliptical bendable end; the bending angle of the implanted end of the main tube 3 is 0 to 180 degrees, for example: 30 degrees, 60 degrees, 90 degrees, 120 degrees, 150 degrees.
The outer sheath tube 1 is a single-lumen tube or a multi-lumen tube with a plurality of lumens, the front end of the outer sheath tube 1 is a bendable implanting end, and the tail end of the outer sheath tube 1 is a handle end provided with a connector 11; the connector 11 is provided with second channels 12 matched with the channels of the sheath tube 1, the number of the channels of the second channels 12 is the same as that of the channels of the sheath tube 1, and the second channels 12 are provided with second channel interfaces 13 which can be fixedly connected with the obturator 2 or the main tube 3.
A third scale 14 for indicating the insertion direction of the sheath tube 1 is arranged on the outer surface of the sheath tube 1, and a fourth scale 15 is arranged on the outer surface of the connector 11.
The obturator 2 is a single lumen tube or a multi-lumen tube with a plurality of lumens, the front end of the obturator 2 is an implanting end, the tail end of the obturator 2 is a handle end provided with a joint 21, and the joint 21 is provided with a connecting buckle 22 which is fixedly matched with the joint 11 to enable the obturator 2 to be installed with the sheath tube 1 after being inserted into the sheath tube 1.
The implanting end of the hole device 2 is a conical head with a hole, a round head with a hole or an elliptical head with a hole, and the connector 21 is provided with a luer connector 23.
The cover body 42 is a three-jaw-shaped grabbing cover body or a snare-shaped grabbing cover body or a scissors-shaped grabbing cover body which is formed by weaving at least two silk threads.
The length of the filament 41 is longer than that of the main tube 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.
An adjusting button 45 which is matched with the filament body 41 and is used for adjusting the telescopic length of the filament body 41 is arranged on the grabber handle 43.
The sheath tube 1, the obturator 2 and the main tube 3 are all made of hard materials or semi-hard materials or soft materials, such as: the hard material is stainless steel or aluminum alloy, the semi-hard material is PA or PP or ABS high polymer material, and the soft material is PU or PVC or silica gel.
The sheath tube 1, the hole closing device 2 and the main tube 3 are respectively composed of a front end and a tail end, wherein the front ends of the sheath tube 1, the hole closing device 2 and the main tube 3 are respectively made of a soft material or a hard material or a semi-hard material, and the tail ends of the sheath tube 1, the hole closing device 2 and the main tube 3 are respectively made of a hard material or a semi-hard material, such as: the hard material is stainless steel or aluminum alloy, the semi-hard material is PA or PP or ABS high polymer material, and the soft material is PU or PVC or silica gel.
When the device 100 is used in the embodiment, the device is composed of four parts, namely an external sheath tube 1, a hole closing device 2, a main tube 3 and a grabber 4, which are matched to work. The working process is as follows: firstly, an external sheath tube 1 and an obturator 2 are assembled together and inserted into a bladder from a urethra in the direction, about 1CM is inserted after urine flows out, and then the obturator 2 is withdrawn; secondly, the main pipe 3 and the grabber 4 are assembled together and then inserted into the outer sheath pipe 1 according to the indication direction, the cover body 42 is extended out, and the adjusting pull buckle 51 is operated to be matched with the pull wire to control the front end of the main pipe 3 to be bent; then, operating the adjusting button 45 to control the cover body 42 to stretch so as to sleeve the ureteral stent; and finally, pulling out the outer sheath tube 1, the main tube 3, the grabber 4 and the ureteral stent together.
Example two:
referring to fig. 2-6, the difference between the present embodiment and the first embodiment is: the front end of the main pipe 3 is provided with a CMO camera 6, the tail end of the main pipe 3 is provided with a camera connector 7, one end of the camera connector 7 is connected with the CMO camera 6 through a conducting wire, and the other end of the camera connector 7 is connected with an external camera system through a conducting wire, wherein the CMO camera 6 and the camera connector 7 are fixedly installed on the main pipe, or the CMO camera 6 and the camera connector 7 are detachably installed on the main pipe.
When the device 100 is used in the embodiment, the device is composed of four parts, namely an external sheath tube 1, a hole closing device 2, a main tube 3 and a grabber 4, which are matched to work. The working process is as follows: firstly, an external sheath tube 1 and an obturator 2 are assembled together and inserted into a bladder from a urethra in the direction, about 1CM is inserted after urine flows out, and then the obturator 2 is withdrawn; secondly, a CMO camera 6 and a camera joint 7 are respectively arranged at the tail end of the front end of the main pipe 3, the main pipe 3 and the grabber 4 are assembled together and then inserted into the outer sheath pipe 1 according to the indication direction, the cover body 42 is extended out, and the adjusting pull buckle 51 is operated to be matched with a pull wire to control the front end of the main pipe 3 to be bent; then, starting an external camera system, and controlling the cover body 42 to stretch out and draw back through the CMO camera 6 visual operation adjusting button 45 so as to sleeve the ureteral stent; and finally, pulling out the outer sheath tube 1, the main tube 3, the grabber 4 and the ureteral stent together.
Example three:
referring to fig. 2-5 and 7, the difference between the present embodiment and the first embodiment is: the grabber handle 43 is provided with a power supply connector 8, one end of the power supply connector 8 is connected with an external power supply, and the other end of the power supply connector 8 is connected with the filament body 41 and is used for electrifying the filament body 41 for cutting or electrocoagulation; the filament 41 and the cover 42 are made of conductive material.
The sleeve 200 is detachably sleeved on the wire body 41, the telescopic device 300 is detachably arranged on the gripper handle 43, the wire body 41 and the cover body 42 are both made of copper alloy materials, or the wire body 41 and the cover body 42 are both made of aluminum alloy materials, or the wire body 41 and the cover body 42 are both made of conductive plastics, or the wire body 41 and the cover body 42 are both made of memory alloy materials. When the telescopic sleeve is used, the sleeve 200 is sleeved on the filament 41 from the front end of the filament 41 to the tail end, then the tail end of the filament 41 is connected with the telescopic device 300, and the telescopic device 300 controls the stretching of the filament 41 to enable the filament to be contracted in the sleeve 200 or extend out of the sleeve 200.
When the device 100 is used in the embodiment, the device is composed of four parts, namely an external sheath tube 1, a hole closing device 2, a main tube 3 and a grabber 4, which are matched to work. The working process is as follows: firstly, an external sheath tube 1 and an obturator 2 are assembled together and inserted into a bladder from a urethra in the direction, about 1CM is inserted after urine flows out, and then the obturator 2 is withdrawn; secondly, the grabber 4 is sleeved into the sleeve 200, the grabber 4 and the main pipe 3 are assembled together and then inserted into the outer sheath 1 according to the indication direction, the expansion of the filament 41 is controlled by the expansion piece 300, and then the cover body 42 is extended, or the grabber 4 and the main pipe 3 are directly assembled together and then inserted into the outer sheath 1 according to the indication direction and extended out of the cover body 42, the adjusting pull buckle 51 is operated to be matched with a pull wire to control the front end of the main pipe 3 to be bent, and the adjusting button 45 is operated to control the expansion of the cover body 42, so that the ureteral stent is sleeved on the cover body; then, the power connector 8 is communicated with an external power supply, and the conductive performance of the filament 41 and the cover body 42 is utilized to carry out cutting or electrocoagulation treatment on the local bladder tissue; and finally, pulling out the outer sheath tube 1, the main tube 3, the grabber 4 and the ureteral stent together.
Example four:
referring to fig. 2-5 and 8, the difference between the present embodiment and the first embodiment is: a positioning balloon 9 communicated with one cavity channel of the outer sheath tube 1 is arranged at the bendable implanting end of the outer sheath tube 1, and the positioning balloon 9 is connected with an inflating pipeline 10 through the cavity channel.
An injection joint 101 is arranged at one end of the inflation pipeline 10 far away from the positioning balloon 9, and a one-way valve 102 is also arranged on the inflation pipeline 10.
When the device 100 is used in the embodiment, the device is composed of four parts, namely an external sheath tube 1, a hole closing device 2, a main tube 3 and a grabber 4, which are matched to work. The working process is as follows: firstly, the sheath tube 1 and the obturator 2 are assembled together and inserted into the bladder from the urethra in the direction, and about 1CM is inserted after urine flows out; secondly, the injection joint 101 sequentially inflates the positioning balloon 9 through the one-way valve 102 and the cavity channel of the outer sheath tube 1, and the obturator 2 exits after the positioning balloon 9 is inflated, so that the operation effect is better, and the discomfort of a patient is relieved; then, the main tube 3 and the grabber 4 are assembled together and then inserted into the outer sheath tube 1 according to the indication direction, the cover body 42 is extended out, the adjusting pull buckle 51 is operated to be matched with a pull wire to control the front end of the main tube 3 to be bent, and the adjusting button 45 is operated to control the cover body 42 to stretch and contract so as to sleeve the ureteral stent; and finally, pulling out the outer sheath tube 1, the main tube 3, the grabber 4 and the ureteral stent together.
In summary, the ureteral stent can be removed without being limited to the ureteral stent removal operation in an operating room and the ureteral stent removal operation has little influence on the urethra by adopting the above structure, and the ureteral stent removal device can be used for removing the ureteral stent without the auxiliary operation of a cystoscope and can be operated by a nurse in addition to being suitable for the operation of a doctor.
The above description is of the preferred embodiment of the utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the utility model, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (20)
1. An extraction device for extracting a ureteral stent, the extraction device (100) comprising an outer sheath (1); the method is characterized in that: the device also comprises an obturator (2) which is used for inserting the external sheath tube (1) and can be inserted into the bladder from the urethra after the external sheath tube (1) is installed together; the sheath tube is characterized by also comprising a main tube (3) and a grabber (4) which is used for being installed together with the main tube (3) and then can be inserted into the sheath tube (1); the tail end of the main pipe (3) is provided with an adjusting structure (5) for controlling the bending of the front end of the main pipe (3), the grabber (4) comprises a filament body (41) with the front end capable of penetrating through the main pipe (3), the front end of the filament body (41) is provided with a cover body (42) for grabbing the ureteral stent, and the tail end of the filament body (41) is provided with a grabber handle (43) matched with the tail end of the main pipe (3).
2. An extraction device for extracting a ureteral stent according to claim 1, wherein: the front end of the main pipe (3) is provided with a CMO camera (6), the tail end of the main pipe (3) is provided with a camera connector (7), one end of the camera connector (7) is connected with the CMO camera (6) through a conducting wire, the other end of the camera connector (7) is connected with an external camera system through a conducting wire, wherein the CMO camera (6) and the camera connector (7) are fixedly arranged on the main pipe, or the CMO camera (6) and the camera connector (7) are detachably arranged on the main pipe.
3. An extraction device for extracting a ureteral stent according to claim 1, wherein: a power supply connector (8) is arranged on the gripper handle (43), one end of the power supply connector (8) is connected with an external power supply, and the other end of the power supply connector (8) is connected with the filament body (41) and used for electrifying the filament body (41) for cutting or electrocoagulation; wherein, the filament body (41) and the cover body (42) are both made of conductive materials.
4. An extraction device for extracting a ureteral stent according to claim 3, characterized in that: the wire body (41) is detachably sleeved with a sleeve (200), the grabber handle (43) is detachably provided with a telescopic device (300), the wire body (41) and the cover body (42) are both made of copper alloy materials, or the wire body (41) and the cover body (42) are both made of aluminum alloy materials, or the wire body (41) and the cover body (42) are both made of conductive plastics.
5. An extraction device for extracting a ureteral stent according to claim 1, wherein: adjust structure (5) including adjusting to draw knot (51) and acting as go-between (52), it installs to adjust to draw knot (51) be responsible for (3) end, act as go-between (52) one end is fixed be responsible for (3) front end, act as go-between (52) other end is fixed adjust to draw on knot (51).
6. An extraction device for extracting a ureteral stent according to claim 5, wherein: the main pipe (3) is a single-cavity pipe or a multi-cavity pipe with a plurality of cavities, the front end of the main pipe (3) is an implanting end, and the tail end of the main pipe (3) is a handle end provided with a main pipe control handle (31); the main pipe control handle (31) comprises a connecting seat (311) arranged at the tail end of the main pipe (3), a first cavity (312) matched with the cavity of the main pipe (3) is arranged in the connecting seat (311), the number of the cavities of the first cavity (312) is the same as that of the cavities of the main pipe (3), a clamping groove (313) used for being matched with the adjusting pull buckle (51) to adjust the tension of the pull wire (52) is further arranged on the connecting seat (311), and the adjusting pull buckle (51) is arranged on the clamping groove (313); the tail end of the connecting seat (311) is provided with a first cavity channel interface (314) which can be fixedly connected with the outer sheath tube (1).
7. An extraction device for extracting a ureteral stent according to claim 6, wherein: 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 second scale (315) for indicating the bending degree of the implanting end of the main pipe (3).
8. An extraction device for extracting a ureteral stent according to claim 7, wherein: the implantation end of the main pipe (3) is a round or conical or oval bendable end, and the bending angle of the implantation end of the main pipe (3) is 0-180 degrees.
9. An extraction device for extracting a ureteral stent according to claim 1, wherein: the sheath tube (1) is a single-cavity tube or a multi-cavity tube with a plurality of cavities, the front end of the sheath tube (1) is a bendable implanting end, and the tail end of the sheath tube (1) is a handle end provided with a connector (11); the connector (11) is provided with second channels (12) matched with the channels of the outer sheath tube (1), the number of the channels of the second channels (12) is the same as that of the channels of the outer sheath tube (1), and the second channels (12) are provided with second channel interfaces (13) fixedly connected with the hole closing device (2) or the main tube (3).
10. An extraction device for extracting a ureteral stent according to claim 9, wherein: the outer surface of the sheath tube (1) is provided with a third scale (14) for indicating the insertion direction of the sheath tube (1), and the outer surface of the connector (11) is provided with a fourth scale (15).
11. An extraction device for extracting a ureteral stent according to claim 9, wherein: a positioning balloon (9) communicated with one cavity channel of the external sheath tube (1) is arranged at the bendable implanting end of the external sheath tube (1), and the positioning balloon (9) is connected with an inflation pipeline (10) through the cavity channel.
12. An extraction device for extracting a ureteral stent according to claim 11, wherein: an injection joint (101) is arranged at one end of the inflation pipeline (10) far away from the positioning balloon (9), and a one-way valve (102) is arranged on the inflation pipeline (10).
13. An extraction device for extracting a ureteral stent according to claim 9, wherein: the obturator (2) is a single-cavity tube or a multi-cavity tube with a plurality of cavities, the front end of the obturator (2) is an implanting end, the tail end of the obturator (2) is a handle end provided with a connector (21), and a connecting buckle (22) which is fixedly matched with the connector (11) to enable the obturator (2) to be installed with the outer sheath tube (1) after being inserted into the outer sheath tube (1) is arranged on the connector (21).
14. An extraction device for extracting a ureteral stent according to claim 13, wherein: the implanting end of the hole device (2) is a perforated conical head or a perforated round head or a perforated elliptical head, and a luer joint (23) is arranged on the joint (21).
15. An extraction device for extracting a ureteral stent according to any of claims 1 to 14, wherein: the cover body (42) is a three-claw-shaped grabbing cover body or a snare-shaped grabbing cover body or a scissors-shaped grabbing cover body which is formed by weaving at least two silk threads.
16. An extraction device for extracting a ureteral stent according to any of claims 1 to 14, wherein: the length of the filament body (41) is longer than that of the main pipe (3), and the front end of the filament body (41) is a bendable end.
17. An extraction device for extracting a ureteral stent according to claim 16, wherein: and a fifth scale (44) is arranged on the outer surface of the filament body (41).
18. An extraction device for extracting a ureteral stent according to claim 16, wherein: an adjusting button (45) which is matched with the filament body (41) and is used for adjusting the telescopic length of the filament body (41) is arranged on the grabber handle (43).
19. An extraction device for extracting a ureteral stent according to claim 1, wherein: the sheath tube (1), the obturator (2) and the main tube (3) are all made of hard materials, semi-hard materials or soft materials.
20. An extraction device for extracting a ureteral stent according to claim 1, wherein: the sheath tube (1), the hole closing device (2) and the main tube (3) are all composed of front ends and tail ends, wherein the front ends of the sheath tube (1), the hole closing device (2) and the main tube (3) are all made of soft materials or hard materials or semi-hard materials, and the tail ends of the sheath tube (1), the hole closing device (2) and the main tube (3) are all made of hard materials or semi-hard materials.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020101099772 | 2020-02-23 | ||
| CN202010109977.2A CN111134921A (en) | 2020-02-23 | 2020-02-23 | A pull out device for pulling out ureteral stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215459020U true CN215459020U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010109977.2A Pending CN111134921A (en) | 2020-02-23 | 2020-02-23 | A pull out device for pulling out ureteral stent |
| CN202110133867.4A Active CN112656559B (en) | 2020-02-23 | 2021-02-01 | A pull out device for pulling out ureteral stent |
| CN202120272233.2U Active CN215459020U (en) | 2020-02-23 | 2021-02-01 | A pull out device for pulling out ureteral stent |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010109977.2A Pending CN111134921A (en) | 2020-02-23 | 2020-02-23 | A pull out device for pulling out ureteral stent |
| CN202110133867.4A Active CN112656559B (en) | 2020-02-23 | 2021-02-01 | A pull out device for pulling out ureteral stent |
Country Status (2)
| Country | Link |
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| CN (3) | CN111134921A (en) |
| WO (1) | WO2021164535A1 (en) |
Cited By (1)
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|---|---|---|---|---|
| CN112656559A (en) * | 2020-02-23 | 2021-04-16 | 广州维力医疗器械股份有限公司 | A pull out device for pulling out ureteral stent |
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| CN113893002B (en) * | 2021-10-08 | 2023-05-23 | 河北医科大学第二医院 | Stone-taking basket and operation method thereof |
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| CN101849866B (en) * | 2010-05-14 | 2012-05-30 | 卢振权 | Guide device for embedding zebra guide wires for ureteral stent below laparoscope |
| CN202654270U (en) * | 2012-03-30 | 2013-01-09 | 景德善 | Noninvasive pipe extractor for support pipe in ureter |
| US10028853B2 (en) * | 2014-10-23 | 2018-07-24 | Michael Mooreville | Stent removal snare and dilator |
| CN204683849U (en) * | 2015-02-26 | 2015-10-07 | 陈琦 | A kind of ureter bracket withdrawing device |
| EP3302306B1 (en) * | 2015-05-27 | 2020-07-22 | Coloplast A/S | Grasping tool |
| CN204766960U (en) * | 2015-06-05 | 2015-11-18 | 河南省肿瘤医院 | Double -J ureteral stents arrests ware |
| US20200397558A1 (en) * | 2016-04-11 | 2020-12-24 | Baylor College Of Medicine | Removable ureteral stents and methods of use of the same |
| US10905577B2 (en) * | 2017-04-28 | 2021-02-02 | Covidien Lp | Stent delivery system |
| CN209060261U (en) * | 2017-12-29 | 2019-07-05 | 广州维力医疗器械股份有限公司 | It is a kind of adjustable to lead core for the visual of trachea cannula |
| CN108403267A (en) * | 2018-03-26 | 2018-08-17 | 湖南瀚德微创医疗科技有限公司 | A kind of ureter bracket suit |
| CN108836587A (en) * | 2018-05-16 | 2018-11-20 | 张晨辉 | A kind of dedicated extractor of ureter rack tube |
| CN209808658U (en) * | 2018-12-08 | 2019-12-20 | 梁平 | Ureteral stent implanting forceps for laparoscopic surgery |
| CN209827117U (en) * | 2019-03-14 | 2019-12-24 | 中国医科大学附属盛京医院 | Ureteral stent removing device |
| CN111134921A (en) * | 2020-02-23 | 2020-05-12 | 广州维力医疗器械股份有限公司 | A pull out device for pulling out ureteral stent |
-
2020
- 2020-02-23 CN CN202010109977.2A patent/CN111134921A/en active Pending
-
2021
- 2021-02-01 CN CN202110133867.4A patent/CN112656559B/en active Active
- 2021-02-01 CN CN202120272233.2U patent/CN215459020U/en active Active
- 2021-02-02 WO PCT/CN2021/074759 patent/WO2021164535A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112656559A (en) * | 2020-02-23 | 2021-04-16 | 广州维力医疗器械股份有限公司 | A pull out device for pulling out ureteral stent |
| CN112656559B (en) * | 2020-02-23 | 2024-07-09 | 广州维力医疗器械股份有限公司 | A pull out device for pulling out ureteral stent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112656559A (en) | 2021-04-16 |
| CN111134921A (en) | 2020-05-12 |
| CN112656559B (en) | 2024-07-09 |
| WO2021164535A1 (en) | 2021-08-26 |
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