CN112568945A - Ureter soft lens introducing sheath with adjustable pipe diameter and capable of displaying pipe diameter - Google Patents
Ureter soft lens introducing sheath with adjustable pipe diameter and capable of displaying pipe diameter Download PDFInfo
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- CN112568945A CN112568945A CN202011414430.XA CN202011414430A CN112568945A CN 112568945 A CN112568945 A CN 112568945A CN 202011414430 A CN202011414430 A CN 202011414430A CN 112568945 A CN112568945 A CN 112568945A
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- opening edge
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- catheter body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/307—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the urinary organs, e.g. urethroscopes, cystoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/00296—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means mounted on an endoscope
Abstract
A ureteroscope leading-in sheath with adjustable pipe diameter and displaying pipe diameter comprises a catheter body with a pipe cavity; the catheter is characterized in that the catheter body is provided with an arc-shaped sheet with a first opening edge and a second opening edge, and an overlapping area is arranged between the first opening edge and the second opening edge; the first end of the catheter body is provided with an adjusting component for controlling the inner diameter of the lumen of the catheter body, and the adjusting component is connected with the catheter body; the adjusting assembly comprises a first arc-shaped operating rod arranged at the first end of the arc-shaped piece and a rotating wheel arranged at the first end of the first arc-shaped operating rod; medical personnel realize expanding or reducing the purpose of pipe body pipe diameter according to the actual use demand through clockwise or anticlockwise operation swiveling wheel.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a ureter soft lens introducing sheath with adjustable pipe diameter and capable of displaying the pipe diameter.
Background
The ureter soft lens technology is a new technology aiming at ureter upper segment calculus and kidney calculus, and a guide sheath is needed to be used as a tunnel in an operation to assist a soft lens to enter a channel instrument of an operation position. The difficulties reported by the current domestic and foreign documents are as follows:
1. before operation, a ureteral stent tube needs to be placed in a patient body to promote the passive expansion of the ureter so as to increase the success rate of placing an introduction sheath in a soft lens operation, but during the retention period of the ureteral stent, the patient needs to endure normal complications such as frequent micturition, urgent micturition, lumbago and hematurition, and at least 2 ten thousand is needed to place the ureteral stent tube, so that the cost is high;
2. at present, experts hope to bypass the step of indwelling ureteral stent tube and directly perform soft-lens surgery, but the failure rate of placing an introducing sheath with corresponding size in the surgery is high, the surgery experience of the experts is also frustrated, and patients have to face the fact that the soft-lens lithotripsy surgery cannot be further performed for the first time; in addition, the operation cost and the clinical treatment period of the patient are increased according to the fact that the operation instrument is required to be opened and charged in the operation process, so that the patient is required to bear high operation cost and treatment pain is increased.
3. At present, ureter introducing sheaths of different types exist clinically, a single ureter is used singly, the ureter inner diameter is expanded manually step by step from 12F to 16F, an experienced expert develops a new approach, an expansion sequence from small to large is gradually adopted in an operation, the ureter inner diameter is expanded manually step by step, although a certain proportion success rate is improved, the ureter is expanded due to repeated entering and exiting, and complications risks such as perforation, breakage, bleeding, mucosa avulsion, ureter spasm, postoperative scar stenosis and the like exist, and the problems of high instrument cost and difficulty in medical insurance reimbursement due to the fact that the ureter is repeatedly introduced and charged are also existed for many times; in addition, the method also has the problems of intra-operative risks, near-term and long-term complications after the operation and the like, and has multi-factor uncertainty.
In summary, according to the prior art, the literature reports related to soft-endoscope operations at home and abroad, and the positive and negative conclusion consideration of the related factors including drugs, ureteral stent tubes, calculus size and the like, a ureteral soft-endoscope introduction sheath with adjustable tube diameter and displaying the tube diameter is needed.
Disclosure of Invention
In order to overcome the problems in the background art, the invention provides a flexible ureteroscope guiding sheath with adjustable pipe diameter and displaying the size of the pipe diameter.
A ureteroscope leading-in sheath with adjustable pipe diameter and displaying pipe diameter comprises a catheter body with a pipe cavity; the catheter is characterized in that the catheter body is provided with an arc-shaped sheet with a first opening edge and a second opening edge, and an overlapping area is arranged between the first opening edge and the second opening edge; the first end of the catheter body is provided with an adjusting component for controlling the inner diameter of the lumen of the catheter body, and the adjusting component is connected with the catheter body; the adjusting assembly comprises a first arc-shaped operating rod arranged at the first end of the arc-shaped piece and a rotating wheel arranged at the first end of the first arc-shaped operating rod; medical personnel realize expanding or reducing the purpose of pipe body pipe diameter according to the actual use demand through clockwise or anticlockwise operation swiveling wheel.
Furthermore, the second opening edge is positioned at the inner side of the first opening edge and can move relative to the first opening edge, an arc-shaped blocking piece used for filling a gap between the first opening edge and the second opening edge is fixedly arranged at the outer side of the second opening edge, and the length of the arc-shaped blocking piece penetrates through the length of the arc-shaped piece; the arc-shaped separation blade effectively ensures that the body fluid flows into the tube cavity of the catheter body from the gap between the first opening edge and the second opening edge after the guiding sheath extends into the body of a patient, and the sealing property of the catheter body is effectively ensured.
Further, the arc length of the arc-shaped baffle plate is consistent with the overlapping arc length of the first opening edge and the second opening edge when the pipe diameter of the catheter body is minimum; the arrangement well ensures the sealing performance of the arc-shaped sheet.
Further, the first arc-shaped operating rod is fixedly arranged at the second opening edge of the arc-shaped piece and the first end of the arc-shaped blocking piece; this kind of setting increases the area of contact of first arc action bars and pipe body to make things convenient for medical personnel to change the pipe diameter of pipe body through operating the swiveling wheel.
Furthermore, the outer surface of the first end of the rotating wheel is provided with clinical common pipe diameter scales which are respectively 10F, 12F, 14F, 16F and 18F; the arc length of the rotating wheel occupied by the pipe diameter scales is equal to that of the arc-shaped baffle plate; this kind of setting guarantees through the direct observation of pipe diameter scale to pipe body pipe diameter.
Furthermore, the adjusting assembly also comprises a second arc-shaped operating rod arranged at the first end of the first opening edge and a reference plate arranged at the first end of the second arc-shaped operating rod, and a pointed rod is arranged on one side, facing the rotating wheel, of the reference plate; the requirement of observing the pipe diameter scales clinically is realized by pointing the pipe diameter scales through the pointed rod.
Furthermore, a pointed groove for inserting a pointed rod is formed in the position, corresponding to the rotating wheel, of the rotating wheel, and the second arc-shaped operating rod is a telescopic rod; during the use, adjust the length of second arc operating lever earlier to being good at the length of first arc operating lever, rethread inserts sharp shape pole into the inside fixing of realizing pipe body pipe diameter of point shape groove after rotatory swiveling wheel to suitable pipe diameter according to the demand again. This kind of second arc action bars effectively avoids referring to the board to influence the normal rotation of swiveling wheel for the setting of telescopic link.
Furthermore, a circular ring is arranged on the periphery of the rotating wheel, the rotating wheel and the circular ring are fixedly connected through a connecting rod, and the connecting rod is arranged on one side of the rotating wheel, which is far away from the first arc-shaped operating rod; the arrangement of the circular ring with large diameter is convenient for medical staff to operate in the operation.
Further, a display component for indirectly displaying the pipe diameter of the catheter body is arranged at the left end or the right end of the circular ring, and the display component is connected with the circular ring through a conveyor belt; the arrangement ensures the accurate determination of the pipe diameter of the conduit body.
Further, the display assembly comprises a placing frame placed on the sickbed, a rotating layer which is limited on one side of the placing frame and can rotate relative to the placing frame, and an operating layer which controls the rotating layer to rotate effectively, wherein the rotating layer is positioned between the operating layer and the placing frame, and the circle centers of the rotating layer, the rotating layer and the operating layer are mapped into a point; two ends of the conveyor belt are respectively positioned on the circular ring and the operation layer; the rotating circular ring in the mode sequentially drives the operation layer and the rotating layer to rotate, and the pipe diameter of the catheter body is indirectly observed by observing the inner diameter reserved in the middle of the rotating layer after the rotating layer rotates. The observation effect to catheter body pipe diameter has been enlargied to this kind of setting for doctor and nurse in the art can all observe.
Furthermore, a circular ring-shaped accommodating cavity for the rotary layer to extend into is arranged on one surface of the placing frame facing the rotary layer; this kind of setting guarantees the effective rotation of the relative rack of rotatory layer.
Furthermore, the rotating layer comprises 4-16 triangular plates, one surface of each triangular plate facing the placement frame is provided with a first cylinder extending into the annular accommodating cavity, and one surface of each triangular plate facing the operating layer is provided with a second cylinder extending into the operating layer; through this kind of mode by the rotation order on operation layer drive second cylinder, triangle-shaped board rotate around the centre of a circle respectively, and then make first cylinder do circular motion in the ring shape holds the intracavity, and triangle-shaped board leaves regular polygon in the middle of the triangle-shaped board when rotating around the centre of a circle all the time.
Further, the number of the triangular plates is preferably 8; the arrangement has low cost and can meet the requirement that the middle of the triangular plate forms an almost perfect circle when rotating.
Furthermore, the operation layer comprises a first ring on the outermost layer and a second ring on the inner layer, the first ring and the second ring are fixedly connected through connecting pieces, the connecting pieces are arranged around the first ring in a circumferential mode, and the number of the connecting pieces is consistent with that of the triangular plates; a straight notch which is used for the second cylinder to move back and forth and penetrates through the connecting sheet is arranged in the middle of the connecting sheet; the moving position of the second cylinder is limited by arranging the straight notch, so that the rotating track of the triangular plate during rotation is effectively limited.
Further, the diameter of the second circular ring is equal to the maximum diameter value of the catheter body, and the diameter of the first circular ring is equal to the circular ring; the setting ensures that the display component can accurately display the pipe diameter of the catheter body when a doctor adjusts the pipe diameter of the catheter body from small to large or from large to small through the adjusting component.
Further, a circular ring-shaped reference picture is arranged on the inner side of one surface, away from the rotating layer, of the second circular ring, and the circular ring-shaped reference picture can display the diameter of an inscribed circle of the middle regular polygon when the triangular plate rotates; the arrangement is convenient for medical staff to observe the diameter of the inscribed circle of the regular polygon left in the middle of the triangular plate.
Further, the annular reference picture is made of transparent materials, and the surface of the annular reference picture is provided with pipe diameter scales corresponding to the pipe diameter of the catheter body, wherein the pipe diameter scales are respectively 10F, 12F, 14F, 16F and 18F; the arrangement is convenient for medical staff to observe during the operation.
Further, arc-shaped limiting sheets with the height larger than the thickness of the conveyor belt are respectively arranged on the front side and the rear side of the outer side wall of the circular ring, and the front side and the rear side of the outer side wall of the first circular ring; the arrangement that the arc-shaped limiting sheets are arranged on the outer side walls of the circular ring and the first circular ring effectively prevents the conveyor belt from falling off from the circular ring and/or the first circular ring.
Further, a fixing piece for fixing the continuous rotation of the conveyor belt is arranged between the arc-shaped limiting sheets on the circular ring or the first circular ring; the fixing piece comprises a connecting block and a fixing block, wherein a groove is reserved in the middle of the connecting block, and two ends of the connecting block are respectively connected with the arc limiting sheet; the fixed block is far away from the conveying belt or is close to the conveying belt by outwards pulling or inwards conveying the fixed block, so that the conveying position is effectively fixed.
Furthermore, the inner part of the groove is provided with a friction surface, and the inner side surface of the connecting block is not connected with the conveying belt.
When the urethral catheter is used, the catheter body is in a minimum-diameter state when the catheter body is not opened, then the catheter body with the minimum diameter is inserted into a patient, and the rotating wheel is rotated clockwise to gradually increase the diameter of the catheter body, so that the aim of gradually and manually expanding the inner diameter of the ureter is fulfilled; in addition, due to the precision requirement of the ureter soft lens operation on surgical instruments, doctors can furthest ensure the accuracy of the pipe diameter of the catheter body by observing the pipe diameter scales on the rotating wheel and the display assembly during operation; when the pipe diameter of pipe body is appointed to needs, the doctor can be through the mode control appointed pipe diameter size of inserting the pointed groove with the sharp pole on the reference board, in addition, the doctor still can be through operation setting fixed block and the connecting block in the ring sum first ring outside, the position of control conveyer belt, the realization is fixed to appointed pipe diameter size.
Compared with the prior art, the technical scheme of the invention has the advantages that the catheter body with adjustable pipe diameter and the adjusting assembly which are integrally formed are arranged, so that the requirement that doctors adopt a gradual expansion sequence from small to large in the operation is met, the problem that the ureter needs to be expanded repeatedly for a plurality of times is avoided, the one-time success probability of soft-mirror operation is effectively improved, and the risk of complications is reduced; in addition, the product also effectively reduces the operation cost and the clinical treatment period of patients due to the advantage of adjustable pipe diameter, and reduces the treatment pain.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the overall structure of the present invention;
FIG. 3 is an enlarged partial view of the first end of the catheter body according to the present invention;
FIG. 4 is an enlarged partial schematic view of a first end of a catheter body (the catheter body being provided with an adjustment assembly and a display assembly) according to the present invention;
FIG. 5 is an enlarged partial schematic view of a portion of a display assembly at a first end of a catheter body (the catheter body being provided with an adjustment assembly and a display assembly) according to the present invention;
FIG. 6 is a schematic view showing the overall structure of the front view angle of the display module when the rack, the rotating layer, the operating layer and the annular reference picture are separated from each other according to the present invention;
FIG. 7 is a schematic view of the overall structure of the rear viewing angle of the display module when the rack, the rotating layer, the operating layer and the annular reference picture are separated from each other according to the present invention;
FIG. 8 is a schematic view of the overall structure of the display module at a rear viewing angle when the rotating layer is mounted on the operating layer according to the present invention;
FIG. 9 is a schematic front view of the overall structure of the operation layer of the present invention;
FIG. 10 is a schematic front view of the overall structure of the present invention with the operation layer and the annular reference picture mounted together;
FIG. 11 is an enlarged partial schematic view of the first end of the catheter body (the catheter body being provided with the adjustment assembly and the display assembly) of the adjustment assembly portion of the present invention;
FIG. 12 is a schematic view of a left-side enlarged view of the first end of the catheter body (the catheter body being provided with the adjustment assembly) according to the present invention;
FIG. 13 is a schematic view of a right-side enlarged view of the first end of the catheter body (the catheter body having an adjustment assembly) according to the present invention;
FIG. 14 is an enlarged partial schematic view of the first end rotation wheel and reference plate portion of the catheter body of the present invention;
in the figure, 1, a catheter body; 11. a first open edge; 12. a second open edge; 13. an arc-shaped baffle plate; 14. a first arc-shaped operating rod; 15. a rotating wheel; 16. a second arc-shaped operating rod; 161. a reference plate; 162. a pointed rod; 163. a pointed groove; 17. a circular ring; 18. a connecting rod; 2. pipe diameter scales; 3. placing a rack; 31. a circular ring-shaped accommodating cavity; 4. a rotation layer; 41. a triangular plate; 42. a first cylinder; 43. a second cylinder; 5. an operation layer; 51. a first circular ring; 52. a second circular ring; 53. connecting sheets; 54. a straight notch; 55. an arc-shaped limiting sheet; 56. connecting blocks; 57. a fixed block; 6. a conveyor belt; 7. and (5) taking a circular reference picture.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below by specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. The present invention can be implemented or applied by other different specific embodiments, and the features in the following embodiments and embodiments can be combined with each other without conflict, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Embodiment 1A ureteroscope introducer sheath with adjustable pipe diameter and display pipe diameter
A ureteroscope guide sheath with adjustable pipe diameter and displaying pipe diameter comprises a catheter body 1 with a pipe cavity; it is characterized in that the catheter body 1 is provided as an arc-shaped piece with a first opening edge 11 and a second opening edge 12, and an overlapping area is arranged between the first opening edge 11 and the second opening edge 12; the first end of the catheter body 1 is provided with an adjusting component for controlling the inner diameter of the lumen of the catheter body 1, and the adjusting component is connected with the catheter body 1; the adjusting assembly comprises a first arc-shaped operating rod 14 arranged at the first end of the arc-shaped piece, and a rotating wheel 15 arranged at the first end of the first arc-shaped operating rod 14; the medical staff realizes the purpose of expanding or reducing the pipe diameter of the catheter body 1 according to the actual use requirement by operating the rotating wheel 15 clockwise or anticlockwise.
The second opening edge 12 is positioned at the inner side of the first opening edge 11, the second opening edge 12 can move relative to the first opening edge 11, an arc-shaped blocking piece 13 used for filling a gap between the first opening edge 11 and the second opening edge 12 is fixedly arranged at the outer side of the second opening edge 12, and the length of the arc-shaped blocking piece 13 penetrates through the length of the arc-shaped piece; the arc-shaped baffle piece 13 is arranged to effectively ensure that body fluid flows into the inner part of the tube cavity of the catheter body 1 from the gap between the first opening edge 11 and the second opening edge 12 after the guiding sheath extends into the body of a patient, and the sealing performance of the catheter body 1 is effectively ensured.
The arc length of the arc-shaped baffle piece 13 is consistent with the overlapping arc length of the first opening edge 11 and the second opening edge 12 when the pipe diameter of the catheter body 1 is the minimum; the arrangement well ensures the sealing performance of the arc-shaped sheet.
The first arc-shaped operating rod 14 is fixedly arranged at the second opening edge 12 of the arc-shaped piece and the first end of the arc-shaped blocking piece 13; this arrangement increases the contact area between the first arc-shaped operating lever 14 and the catheter body 1, thereby facilitating the medical staff to change the tube diameter of the catheter body 1 by operating the rotating wheel 15.
A circular ring 17 is arranged on the periphery of the rotating wheel 15, the rotating wheel 15 and the circular ring 17 are fixedly connected through a connecting rod 18, and the connecting rod 18 is arranged on one side of the rotating wheel 15, which is far away from the first arc-shaped operating rod 14; the arrangement of the circular ring 17 with large diameter is convenient for the operation of medical care personnel in the operation.
A display component for indirectly displaying the pipe diameter of the catheter body 1 is arranged at the left end or the right end of the circular ring 17, and the display component is connected with the circular ring 17 through a conveyor belt 6; this kind of setting guarantees the accurate affirmation to pipe body 1 pipe diameter.
The display assembly comprises a placing frame 3 placed on the sickbed, a rotating layer 4 which is limited on one surface of the placing frame 3 and can rotate relative to the placing frame 3, and an operating layer 5 which controls the rotating layer 4 to rotate effectively, wherein the rotating layer 4 is positioned between the operating layer 5 and the placing frame 3, and the circle centers of the three are mapped into a point; the two ends of the conveyor belt 6 are respectively positioned on the circular ring 17 and the operation layer 5; the circular ring 17 is rotated in such a way, the operation layer 5 and the rotating layer 4 are sequentially driven to rotate, and the pipe diameter of the catheter body 1 is indirectly observed by observing the inner diameter reserved in the middle of the rotating layer 4 after the rotating layer 4 rotates. The observation effect of the pipe diameter of the catheter body 1 is enlarged by the arrangement, so that doctors and nurses in the operation can observe the pipe diameter.
A circular ring-shaped accommodating cavity 31 into which the rotating layer 4 extends is arranged on one surface of the placing frame 3 facing the rotating layer 4; this arrangement ensures effective rotation of the rotating layer 4 relative to the rack 3.
The rotating layer 4 comprises 4-16 triangular plates 41, one surface of each triangular plate 41 facing the placement frame 3 is provided with a first cylinder 42 extending into the annular accommodating cavity 31, and one surface of each triangular plate 41 facing the operating layer 5 is provided with a second cylinder 43 capable of extending into the operating layer 5; in this way, the second cylinder 43 and the triangular plate 41 are driven by the rotation sequence of the operation layer 5 to rotate around the center of the circle, so that the first cylinder 42 performs circular motion in the circular ring-shaped accommodation cavity 31, and a regular polygon is always left in the middle of the triangular plate 41 when the triangular plate 41 rotates around the center of the circle.
The number of the triangular plates 41 is preferably 8; the arrangement is low in cost and can meet the requirement that the middle of the triangular plate 41 forms an almost perfect circle when rotating.
The operation layer 5 comprises a first circular ring 51 at the outermost layer and a second circular ring 52 at the inner layer, the first circular ring 51 and the second circular ring 52 are fixedly connected through connecting pieces 53, the connecting pieces 53 are arranged around the first circular ring 51 in a circumferential mode, and the number of the connecting pieces 53 is consistent with that of the triangular plates 41; a straight notch 54 which is used for the second cylinder 43 to move back and forth and penetrates through the connecting sheet 53 is arranged in the middle of the connecting sheet 53; the moving position of the second cylinder 43 is defined by providing the straight notch 54 so as to effectively define the rotation locus of the triangular plate 41 when rotating.
The diameter of the second circular ring 52 is equal to the maximum pipe diameter value of the catheter body 1, and the diameter of the first circular ring 51 is equal to the circular ring 17; this kind of setting guarantees that the doctor is when adjusting the pipe diameter of catheter body 1 by little to big or by big to little through the adjusting part, and the display element can accurately show the pipe diameter of catheter body 1.
The annular reference picture 7 is arranged on the inner side of one surface of the second annular 52 far away from the rotating layer 4, and the diameter of an inscribed circle of the middle regular polygon can be displayed by the annular reference picture 7 when the triangular plate 41 rotates; the arrangement is convenient for medical staff to observe the diameter of the inscribed circle of the regular polygon left in the middle of the triangular plate 41.
The circular reference picture 7 is made of transparent materials, and the surface of the circular reference picture 7 is provided with pipe diameter scales 2 corresponding to the pipe diameter of the catheter body 1, wherein the pipe diameter scales are respectively 10F, 12F, 14F, 16F and 18F; the arrangement is convenient for medical staff to observe during the operation.
Arc-shaped limiting sheets 55 with the height larger than the thickness of the conveyor belt 6 are respectively arranged on the front side and the rear side of the outer side wall of the circular ring 17 and on the front side and the rear side of the outer side wall of the first circular ring 51; this arrangement of providing the arc-shaped defining pieces 55 on the outer side walls of the circular ring 17 and the first circular ring 51 effectively prevents the conveyor belt 6 from falling off the circular ring 17 and/or the first circular ring 51.
A fixing piece for fixing the continuous rotation of the conveyor belt 6 is arranged between the arc-shaped limiting sheets 55 on the circular ring 17 or the first circular ring 51; the fixing piece comprises a connecting block 56 with a groove in the middle and two ends respectively connected with the arc-shaped limiting sheet 55, and a fixing block 57 which is arranged in the groove and can move relative to the groove; by pulling out or feeding in the fixed block 57, the fixed block 57 is moved away from the conveyor belt 6 or is brought close to the conveyor belt 6, so that the position of the conveyor belt 6 is effectively fixed.
The grooves are internally provided with friction surfaces, and the inner side surfaces of the connecting blocks 56 are not connected with the conveyor belt 6.
Embodiment 2 a ureteroscope guide sheath with adjustable pipe diameter and display pipe diameter
A ureteroscope guide sheath with adjustable pipe diameter and displaying pipe diameter comprises a catheter body 1 with a pipe cavity; it is characterized in that the catheter body 1 is provided as an arc-shaped piece with a first opening edge 11 and a second opening edge 12, and an overlapping area is arranged between the first opening edge 11 and the second opening edge 12; the first end of the catheter body 1 is provided with an adjusting component for controlling the inner diameter of the lumen of the catheter body 1, and the adjusting component is connected with the catheter body 1; the adjusting assembly comprises a first arc-shaped operating rod 14 arranged at the first end of the arc-shaped piece, and a rotating wheel 15 arranged at the first end of the first arc-shaped operating rod 14; the medical staff realizes the purpose of expanding or reducing the pipe diameter of the catheter body 1 according to the actual use requirement by operating the rotating wheel 15 clockwise or anticlockwise.
The second opening edge 12 is positioned at the inner side of the first opening edge 11, the second opening edge 12 can move relative to the first opening edge 11, an arc-shaped blocking piece 13 used for filling a gap between the first opening edge 11 and the second opening edge 12 is fixedly arranged at the outer side of the second opening edge 12, and the length of the arc-shaped blocking piece 13 penetrates through the length of the arc-shaped piece; the arc-shaped baffle piece 13 is arranged to effectively ensure that body fluid flows into the inner part of the tube cavity of the catheter body 1 from the gap between the first opening edge 11 and the second opening edge 12 after the guiding sheath extends into the body of a patient, and the sealing performance of the catheter body 1 is effectively ensured.
The arc length of the arc-shaped baffle piece 13 is consistent with the overlapping arc length of the first opening edge 11 and the second opening edge 12 when the pipe diameter of the catheter body 1 is the minimum; the arrangement well ensures the sealing performance of the arc-shaped sheet.
The first arc-shaped operating rod 14 is fixedly arranged at the second opening edge 12 of the arc-shaped piece and the first end of the arc-shaped blocking piece 13; this arrangement increases the contact area between the first arc-shaped operating lever 14 and the catheter body 1, thereby facilitating the medical staff to change the tube diameter of the catheter body 1 by operating the rotating wheel 15.
The adjusting assembly further comprises a second arc-shaped operating lever 16 disposed at a first end of the first open edge 11, and a reference plate 161 disposed at a first end of the second arc-shaped operating lever 16, a pointed bar 162 being disposed at a side of the reference plate 161 facing the rotation wheel 15; the requirement of observing the pipe diameter scale 2 clinically is realized by pointing the pipe diameter scale 2 through the pointed rod 162.
A pointed groove 163 for inserting the pointed rod 162 is arranged at a position corresponding to the rotating wheel 15, and the second arc-shaped operating rod 16 is a telescopic rod; during the use, adjust the length of second arc action bars 16 earlier to the length that is longer than first arc action bars 14, again according to the demand rotatory swiveling wheel 15 to suitable pipe diameter after the rethread point shape pole 162 inserts inside the realization of point shape groove 163 to pipe body 1 pipe diameter fixed. This second arc-shaped operating lever 16 is provided for the telescopic rod to effectively prevent the reference plate 161 from affecting the normal rotation of the rotating wheel 15.
A circular ring 17 is arranged on the periphery of the rotating wheel 15, the rotating wheel 15 and the circular ring 17 are fixedly connected through a connecting rod 18, and the connecting rod 18 is arranged on one side of the rotating wheel 15, which is far away from the first arc-shaped operating rod 14; the arrangement of the circular ring 17 with large diameter is convenient for the operation of medical care personnel in the operation.
A display component for indirectly displaying the pipe diameter of the catheter body 1 is arranged at the left end or the right end of the circular ring 17, and the display component is connected with the circular ring 17 through a conveyor belt 6; this kind of setting guarantees the accurate affirmation to pipe body 1 pipe diameter.
The display assembly comprises a placing frame 3 placed on the sickbed, a rotating layer 4 which is limited on one surface of the placing frame 3 and can rotate relative to the placing frame 3, and an operating layer 5 which controls the rotating layer 4 to rotate effectively, wherein the rotating layer 4 is positioned between the operating layer 5 and the placing frame 3, and the circle centers of the three are mapped into a point; the two ends of the conveyor belt 6 are respectively positioned on the circular ring 17 and the operation layer 5; the circular ring 17 is rotated in such a way, the operation layer 5 and the rotating layer 4 are sequentially driven to rotate, and the pipe diameter of the catheter body 1 is indirectly observed by observing the inner diameter reserved in the middle of the rotating layer 4 after the rotating layer 4 rotates. The observation effect of the pipe diameter of the catheter body 1 is enlarged by the arrangement, so that doctors and nurses in the operation can observe the pipe diameter.
A circular ring-shaped accommodating cavity 31 into which the rotating layer 4 extends is arranged on one surface of the placing frame 3 facing the rotating layer 4; this arrangement ensures effective rotation of the rotating layer 4 relative to the rack 3.
The rotating layer 4 comprises 4-16 triangular plates 41, one surface of each triangular plate 41 facing the placement frame 3 is provided with a first cylinder 42 extending into the annular accommodating cavity 31, and one surface of each triangular plate 41 facing the operating layer 5 is provided with a second cylinder 43 capable of extending into the operating layer 5; in this way, the second cylinder 43 and the triangular plate 41 are driven by the rotation sequence of the operation layer 5 to rotate around the center of the circle, so that the first cylinder 42 performs circular motion in the circular ring-shaped accommodation cavity 31, and a regular polygon is always left in the middle of the triangular plate 41 when the triangular plate 41 rotates around the center of the circle.
The number of the triangular plates 41 is preferably 8; the arrangement is low in cost and can meet the requirement that the middle of the triangular plate 41 forms an almost perfect circle when rotating.
The operation layer 5 comprises a first circular ring 51 at the outermost layer and a second circular ring 52 at the inner layer, the first circular ring 51 and the second circular ring 52 are fixedly connected through connecting pieces 53, the connecting pieces 53 are arranged around the first circular ring 51 in a circumferential mode, and the number of the connecting pieces 53 is consistent with that of the triangular plates 41; a straight notch 54 which is used for the second cylinder 43 to move back and forth and penetrates through the connecting sheet 53 is arranged in the middle of the connecting sheet 53; the moving position of the second cylinder 43 is defined by providing the straight notch 54 so as to effectively define the rotation locus of the triangular plate 41 when rotating.
The diameter of the second circular ring 52 is equal to the maximum pipe diameter value of the catheter body 1, and the diameter of the first circular ring 51 is equal to the circular ring 17; this kind of setting guarantees that the doctor is when adjusting the pipe diameter of catheter body 1 by little to big or by big to little through the adjusting part, and the display element can accurately show the pipe diameter of catheter body 1.
The annular reference picture 7 is arranged on the inner side of one surface of the second annular 52 far away from the rotating layer 4, and the diameter of an inscribed circle of the middle regular polygon can be displayed by the annular reference picture 7 when the triangular plate 41 rotates; the arrangement is convenient for medical staff to observe the diameter of the inscribed circle of the regular polygon left in the middle of the triangular plate 41.
The circular reference picture 7 is made of transparent materials, and the surface of the circular reference picture 7 is provided with pipe diameter scales 2 corresponding to the pipe diameter of the catheter body 1, wherein the pipe diameter scales are respectively 10F, 12F, 14F, 16F and 18F; the arrangement is convenient for medical staff to observe during the operation.
Arc-shaped limiting sheets 55 with the height larger than the thickness of the conveyor belt 6 are respectively arranged on the front side and the rear side of the outer side wall of the circular ring 17 and on the front side and the rear side of the outer side wall of the first circular ring 51; this arrangement of providing the arc-shaped defining pieces 55 on the outer side walls of the circular ring 17 and the first circular ring 51 effectively prevents the conveyor belt 6 from falling off the circular ring 17 and/or the first circular ring 51.
Embodiment 3 a ureteroscope guide sheath with adjustable pipe diameter and display pipe diameter
A ureteroscope guide sheath with adjustable pipe diameter and displaying pipe diameter comprises a catheter body 1 with a pipe cavity; it is characterized in that the catheter body 1 is provided as an arc-shaped piece with a first opening edge 11 and a second opening edge 12, and an overlapping area is arranged between the first opening edge 11 and the second opening edge 12; the first end of the catheter body 1 is provided with an adjusting component for controlling the inner diameter of the lumen of the catheter body 1, and the adjusting component is connected with the catheter body 1; the adjusting assembly comprises a first arc-shaped operating rod 14 arranged at the first end of the arc-shaped piece, and a rotating wheel 15 arranged at the first end of the first arc-shaped operating rod 14; the medical staff realizes the purpose of expanding or reducing the pipe diameter of the catheter body 1 according to the actual use requirement by operating the rotating wheel 15 clockwise or anticlockwise.
The second opening edge 12 is positioned at the inner side of the first opening edge 11, the second opening edge 12 can move relative to the first opening edge 11, an arc-shaped blocking piece 13 used for filling a gap between the first opening edge 11 and the second opening edge 12 is fixedly arranged at the outer side of the second opening edge 12, and the length of the arc-shaped blocking piece 13 penetrates through the length of the arc-shaped piece; the arc-shaped baffle piece 13 is arranged to effectively ensure that body fluid flows into the inner part of the tube cavity of the catheter body 1 from the gap between the first opening edge 11 and the second opening edge 12 after the guiding sheath extends into the body of a patient, and the sealing performance of the catheter body 1 is effectively ensured.
The arc length of the arc-shaped baffle piece 13 is consistent with the overlapping arc length of the first opening edge 11 and the second opening edge 12 when the pipe diameter of the catheter body 1 is the minimum; the arrangement well ensures the sealing performance of the arc-shaped sheet.
The first arc-shaped operating rod 14 is fixedly arranged at the second opening edge 12 of the arc-shaped piece and the first end of the arc-shaped blocking piece 13; this arrangement increases the contact area between the first arc-shaped operating lever 14 and the catheter body 1, thereby facilitating the medical staff to change the tube diameter of the catheter body 1 by operating the rotating wheel 15.
The outer surface of the first end of the rotating wheel 15 is provided with clinical common pipe diameter scales 2 which are respectively 10F, 12F, 14F, 16F and 18F; the arc length of the rotating wheel 15 occupied by the pipe diameter scales 2 is equal to that of the arc blocking piece 13; this kind of setting guarantees through the direct observation of pipe diameter scale 2 to pipe body 1 pipe diameter.
The adjusting assembly further comprises a second arc-shaped operating lever 16 disposed at a first end of the first open edge 11, and a reference plate 161 disposed at a first end of the second arc-shaped operating lever 16, a pointed bar 162 being disposed at a side of the reference plate 161 facing the rotation wheel 15; the requirement of observing the pipe diameter scale 2 clinically is realized by pointing the pipe diameter scale 2 through the pointed rod 162.
A pointed groove 163 for inserting the pointed rod 162 is arranged at a position corresponding to the rotating wheel 15, and the second arc-shaped operating rod 16 is a telescopic rod; during the use, adjust the length of second arc action bars 16 earlier to the length that is longer than first arc action bars 14, again according to the demand rotatory swiveling wheel 15 to suitable pipe diameter after the rethread point shape pole 162 inserts inside the realization of point shape groove 163 to pipe body 1 pipe diameter fixed. This second arc-shaped operating lever 16 is provided for the telescopic rod to effectively prevent the reference plate 161 from affecting the normal rotation of the rotating wheel 15.
Embodiment 4 a ureteroscope guide sheath with adjustable pipe diameter and display pipe diameter
A ureteroscope guide sheath with adjustable pipe diameter and displaying pipe diameter comprises a catheter body 1 with a pipe cavity; it is characterized in that the catheter body 1 is provided as an arc-shaped piece with a first opening edge 11 and a second opening edge 12, and an overlapping area is arranged between the first opening edge 11 and the second opening edge 12; the first end of the catheter body 1 is provided with an adjusting component for controlling the inner diameter of the lumen of the catheter body 1, and the adjusting component is connected with the catheter body 1; the adjusting assembly comprises a first arc-shaped operating rod 14 arranged at the first end of the arc-shaped piece, and a rotating wheel 15 arranged at the first end of the first arc-shaped operating rod 14; the medical staff realizes the purpose of expanding or reducing the pipe diameter of the catheter body 1 according to the actual use requirement by operating the rotating wheel 15 clockwise or anticlockwise.
The second opening edge 12 is positioned at the inner side of the first opening edge 11, the second opening edge 12 can move relative to the first opening edge 11, an arc-shaped blocking piece 13 used for filling a gap between the first opening edge 11 and the second opening edge 12 is fixedly arranged at the outer side of the second opening edge 12, and the length of the arc-shaped blocking piece 13 penetrates through the length of the arc-shaped piece; the arc-shaped baffle piece 13 is arranged to effectively ensure that body fluid flows into the inner part of the tube cavity of the catheter body 1 from the gap between the first opening edge 11 and the second opening edge 12 after the guiding sheath extends into the body of a patient, and the sealing performance of the catheter body 1 is effectively ensured.
The arc length of the arc-shaped baffle piece 13 is consistent with the overlapping arc length of the first opening edge 11 and the second opening edge 12 when the pipe diameter of the catheter body 1 is the minimum; the arrangement well ensures the sealing performance of the arc-shaped sheet.
The first arc-shaped operating rod 14 is fixedly arranged at the second opening edge 12 of the arc-shaped piece and the first end of the arc-shaped blocking piece 13; this arrangement increases the contact area between the first arc-shaped operating lever 14 and the catheter body 1, thereby facilitating the medical staff to change the tube diameter of the catheter body 1 by operating the rotating wheel 15.
The outer surface of the first end of the rotating wheel 15 is provided with clinical common pipe diameter scales 2 which are respectively 10F, 12F, 14F, 16F and 18F; the arc length of the rotating wheel 15 occupied by the pipe diameter scales 2 is equal to that of the arc blocking piece 13; this kind of setting guarantees through the direct observation of pipe diameter scale 2 to pipe body 1 pipe diameter.
The adjusting assembly further comprises a second arc-shaped operating lever 16 disposed at a first end of the first open edge 11, and a reference plate 161 disposed at a first end of the second arc-shaped operating lever 16, a pointed bar 162 being disposed at a side of the reference plate 161 facing the rotation wheel 15; the requirement of observing the pipe diameter scale 2 clinically is realized by pointing the pipe diameter scale 2 through the pointed rod 162.
A pointed groove 163 for inserting the pointed rod 162 is arranged at a position corresponding to the rotating wheel 15, and the second arc-shaped operating rod 16 is a telescopic rod; during the use, adjust the length of second arc action bars 16 earlier to the length that is longer than first arc action bars 14, again according to the demand rotatory swiveling wheel 15 to suitable pipe diameter after the rethread point shape pole 162 inserts inside the realization of point shape groove 163 to pipe body 1 pipe diameter fixed. This second arc-shaped operating lever 16 is provided for the telescopic rod to effectively prevent the reference plate 161 from affecting the normal rotation of the rotating wheel 15.
A circular ring 17 is arranged on the periphery of the rotating wheel 15, the rotating wheel 15 and the circular ring 17 are fixedly connected through a connecting rod 18, and the connecting rod 18 is arranged on one side of the rotating wheel 15, which is far away from the pipe diameter scale 2; the arrangement of the circular ring 17 with large diameter is convenient for the operation of medical care personnel in the operation.
The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the invention without departing from the principle of the invention, which would also fall within the scope of the claims of the invention.
Claims (10)
1. A ureteroscope leading-in sheath with adjustable pipe diameter and displaying pipe diameter comprises a catheter body with a pipe cavity; the catheter is characterized in that the catheter body is provided with an arc-shaped sheet with a first opening edge and a second opening edge, and an overlapping area is arranged between the first opening edge and the second opening edge; the first end of the catheter body is provided with an adjusting component for controlling the inner diameter of the lumen of the catheter body, and the adjusting component is connected with the catheter body; the adjusting component comprises a first arc-shaped operating rod arranged at the first end of the arc-shaped piece and a rotating wheel arranged at the first end of the first arc-shaped operating rod.
2. The ureteroscope introduction sheath with adjustable tube diameter and displaying tube diameter according to claim 1, wherein the second opening edge is positioned at the inner side of the first opening edge and can move relative to the first opening edge, an arc-shaped separation blade for filling a gap between the first opening edge and the second opening edge is fixedly arranged at the outer side of the second opening edge, and the length of the arc-shaped separation blade penetrates through the length of the arc-shaped separation blade; the arc length of the arc-shaped baffle plate is consistent with the overlapping arc length of the first opening edge and the second opening edge when the pipe diameter of the conduit body is minimum.
3. The ureteroscope guide sheath capable of adjusting the caliber and displaying the caliber size according to claim 1, wherein a circular ring is arranged at the periphery of the rotating wheel, the rotating wheel and the circular ring are fixedly connected through a connecting rod, and the connecting rod is arranged at one side of the rotating wheel far away from the first arc-shaped operating rod; the left end or the right end of the circular ring is provided with a display component for indirectly displaying the pipe diameter of the catheter body, and the display component is connected with the circular ring through a conveyor belt.
4. The ureteroscope guide-in sheath capable of adjusting the pipe diameter and displaying the pipe diameter according to claim 4, wherein the display assembly comprises a placing frame placed on a hospital bed, a rotating layer which is limited on one surface of the placing frame and can rotate relative to the placing frame, and an operating layer which controls the rotating layer to effectively rotate, the rotating layer is positioned between the operating layer and the placing frame, and the centers of the three are mapped into one point; the two ends of the conveyor belt are respectively positioned on the circular ring and the operation layer.
5. The ureteroscope guiding sheath capable of adjusting the tube diameter and displaying the tube diameter according to claim 4, wherein a circular ring-shaped accommodating cavity for the rotating layer to extend into is arranged on one surface of the placing frame facing the rotating layer.
6. The ureteroscope guide-in sheath capable of adjusting pipe diameter and displaying pipe diameter size according to claim 4, wherein the rotating layer comprises 4-16 triangular plates, a first cylinder extending into the circular ring-shaped accommodating cavity is arranged on one surface of each triangular plate facing the placing frame, and a second cylinder capable of extending into the operating layer is arranged on one surface of each triangular plate facing the operating layer.
7. The ureteroscope introduction sheath with adjustable tube diameter and displaying the tube diameter size according to claim 4, wherein the operation layer comprises a first ring at the outermost layer and a second ring at the inner layer, the first ring and the second ring are fixedly connected through connecting pieces, the connecting pieces are arranged circumferentially around the first ring, and the number of the connecting pieces is consistent with that of the triangular plates; and a straight notch which is used for the second cylinder to move back and forth and penetrates through the connecting sheet is arranged in the middle of the connecting sheet.
8. The ureteroscope introducer sheath according to claim 7, wherein a circular reference picture is provided inside a surface of the second circular ring away from the rotating layer, the circular reference picture being capable of displaying the diameter of an inscribed circle of the middle regular polygon when the triangular plate rotates.
9. The ureteroscope introducer sheath capable of adjusting pipe diameter and displaying pipe diameter according to claim 8, wherein the diameter of the second circular ring is equal to the maximum pipe diameter value of the catheter body, and the diameter of the first circular ring is equal to the circular ring.
10. The ureteroscope introducer sheath with adjustable tube diameter and displaying the tube diameter according to claim 8, wherein the annular reference picture is made of a transparent material, and the surface of the annular reference picture is provided with tube diameter scales corresponding to the tube diameter of the catheter body, which are respectively 10F, 12F, 14F, 16F and 18F.
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| CN202011414430.XA CN112568945B (en) | 2020-12-03 | 2020-12-03 | Ureter soft lens introducing sheath with adjustable pipe diameter and capable of displaying pipe diameter |
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| CN202011414430.XA CN112568945B (en) | 2020-12-03 | 2020-12-03 | Ureter soft lens introducing sheath with adjustable pipe diameter and capable of displaying pipe diameter |
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| CN114010277A (en) * | 2021-10-25 | 2022-02-08 | 河北医科大学第三医院 | Adjustable channel of nucleus pulposus enucleation under unilateral binary channels mirror |
| CN117653882A (en) * | 2024-02-01 | 2024-03-08 | 北京大学第三医院（北京大学第三临床医学院） | Guiding catheter with adjustable pipe diameter |
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