CN217611267U - Guide sheath capable of actively bending - Google Patents
Guide sheath capable of actively bending Download PDFInfo
- Publication number
- CN217611267U CN217611267U CN202222328126.4U CN202222328126U CN217611267U CN 217611267 U CN217611267 U CN 217611267U CN 202222328126 U CN202222328126 U CN 202222328126U CN 217611267 U CN217611267 U CN 217611267U
- Authority
- CN
- China
- Prior art keywords
- traction wire
- sheath
- pivot
- actively
- reel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model provides a guide sheath capable of actively bending, which comprises a sheath body, wherein a passage for the entrance and exit of a soft lens is formed from one end of the sheath body to the other end of the sheath body, the sheath body comprises a body part, a movable connecting part and a tip part, and the tip part is connected with one end of the body part through the movable connecting part; the one end that the pointed end portion was kept away from to the somatic part is equipped with adjusting part, and adjusting part includes first traction wire, second traction wire and regulation and control structure, and the relative both sides of somatic part are located respectively to first traction wire and second traction wire, and the last lateral wall of pointed end portion, other end connection regulation and control structure are connected to the one end of first traction wire, and the lower lateral wall of pointed end portion, other end connection regulation and control structure are connected to the one end of second traction wire. The first traction wire or the second traction wire is pulled through the operation regulation and control structure, so that the active upward or downward bending of the tip part is realized, and the technical problem that the angle of a guide sheath in the prior art needs to be adjusted repeatedly in the operation process, so that the anesthesia risk of a patient is increased is solved.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a guide sheath capable of actively bending.
Background
With the progress of medical technology, the development of minimally invasive surgery concept and the enhancement of people's attention to their health, ureter soft-lens lithotripsy is more and more favored by patients and clinicians. In the process of ureter soft lens lithotripsy, the key step is to place a ureter guide sheath into the affected ureter. The ureter soft lens can construct a channel communicated with the outside and the renal pelvis to reduce ureter injury caused by repeated entering and exiting of the ureter soft lens in the operation process; meanwhile, the more important thing is that the device can ensure the smoothness of the ureter towards the renal pelvis in the operation process to ensure that the water injected into the renal pelvis flows out smoothly, avoid the occurrence of high pressure in the renal pelvis and reduce the risk of serious infection of the whole body.
However, the ureteral guide sheaths currently used are all made of rigid materials, and because a certain included angle exists between the renal pelvis and the ureter, the rigid sheath is difficult to successfully cross the included angle of the renal pelvis and the ureter and is placed into the renal pelvis, and even if the rigid sheath is successfully placed, the flexible ureteroscope is limited due to the fact that the sheath is not bendable, so that stones at the lower pole of the kidney are difficult to treat cleanly, and further popularization of the flexible ureteroscope is limited. In order to solve the problem, although the concept of the ureteral access sheath with a bendable head end is proposed, the flexible ureteral access sheaths are passively bent along with a soft lens and cannot be actively bent, so that the angle of the flexible ureteral access sheath needs to be repeatedly adjusted in the operation process, the operation time is delayed, the anesthesia risk of a patient is increased, and the experience of an operator is influenced.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing a flexible guide sheath can initiatively be crooked for solve the unable initiative of guide sheath among the prior art and crooked for its angle need be adjusted repeatedly at the operation in-process, lead to increasing patient's anesthesia risk's technical problem.
The utility model provides a guide sheath capable of actively bending, which comprises a sheath body, wherein a passage for the flexible lens to pass in and out is formed from one end of the sheath body to the other end, the sheath body comprises a body part, a movable connecting part and a tip part, and the tip part is connected with one end of the body part through the movable connecting part;
the utility model discloses a point portion, this point portion's of point portion is including most advanced line, this point portion's of point portion is equipped with the tip portion, this point portion's of point portion is equipped with the regulation subassembly, the regulation subassembly includes first pull wire, second pull wire and regulation and control structure, first pull wire with the second pull wire is located respectively the relative both sides of this point portion, the one end of first pull wire is connected the last lateral wall of tip portion, the other end is connected the regulation and control structure, the one end of second pull wire is connected the lower lateral wall of tip portion, the other end is connected the regulation and control structure.
Above-mentioned flexible guide sheath of taking the initiative pulls first traction wire or second traction wire through operation regulation and control structure pulling, realizes that the initiative of cusp portion upwards or downwarping, fixes the sheath body in a certain position as required afterwards for need not adjust the position of sheath through soft mirror repeatedly, the unable initiative of guide sheath among the prior art is crooked, makes its angle of need adjusting repeatedly at the operation in-process, leads to the technical problem who has increased patient's anesthesia risk.
Further, the actively bendable guide sheath is characterized in that a first lead sheath and a second lead sheath are symmetrically arranged on two opposite sides of the body part, the first traction wire penetrates through the first lead sheath to connect the tip part and the regulating structure, and the second traction wire penetrates through the second lead sheath to connect the tip part and the regulating structure.
Further, crooked sheath can initiatively, wherein, regulation and control structure is including locating fixed disk on the body part lateral wall and locating first pivot and second pivot on the fixed disk, first pivot with through gear train intermeshing transmission between the second pivot, first pivot with be equipped with first reel and second reel in the second pivot respectively, first traction wire is clockwise around establishing on the first reel, the second traction wire is clockwise around establishing on the second reel.
Further, the actively bendable guide sheath is characterized in that the body part is provided with a protective shell covering the adjusting structure, the protective shell is provided with openings through which the first traction wire and the second traction wire pass, and the first rotating shaft or the second rotating shaft passes through the protective shell and is connected with an adjusting knob.
Furthermore, the guide sheath capable of being actively bent, wherein an upward adjustment indicator and a downward adjustment indicator are arranged on the end face of the protective shell, and a pointer is arranged on the adjusting knob.
Further, the actively bendable introducer sheath, wherein the articulating portion is a bellows.
Further, the actively bendable guide sheath, wherein a negative pressure suction tube is obliquely arranged at one end of the body part away from the tip part, and the negative pressure suction tube is communicated with the sheath body.
Further, the guide sheath capable of actively bending is characterized in that the sheath body is made of medical plastic materials.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a perspective view of an actively bendable introducer sheath of the present invention;
fig. 2 is a front view of an actively bendable introducer sheath of the present invention;
fig. 3 is a schematic structural diagram of the structure of the present invention;
fig. 4 is a schematic structural diagram of the middle adjusting knob according to the present invention;
the main components in the figure are illustrated by symbols:
10-sheath body, 11-body, 12-movable connecting part, 13-tip part, 20-regulating structure, 21-fixed disc, 22-first rotating shaft, 23-second rotating shaft, 24-gear set, 25-first reel, 26-second reel, 31-first lead sleeve, 32-second lead sleeve, 40-protective shell, 50-regulating knob, 61-upward regulating indicator, 62-downward regulating indicator and 63-pointer.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1 to 4, the active bending introducer sheath of the present invention comprises a sheath body 10, wherein one end of the sheath body 10 is penetrated to the other end to form a passage for the flexible endoscope to enter and exit, specifically, the sheath body 10 is made of medical plastic material, and the surface thereof is coated with a hydrophilic coating, so as to smoothly enter the ureter, and the sheath has a low cost, is disposable, and can effectively prevent cross infection.
The sheath body 10 comprises a body part 11, a movable connecting part 12 and a tip part 13, wherein the tip part 13 is connected with one end of the body part 11 through the movable connecting part 12, the movable connecting part 12 adopts a corrugated pipe, and the tip part 13 can be bent upwards or downwards through the corrugated pipe;
one end of the body part 11, which is far away from the tip part 13, is provided with an adjusting component, the adjusting component comprises a first traction wire (not shown), a second traction wire (not shown) and an adjusting structure 20, the first traction wire and the second traction wire are respectively arranged on two opposite sides of the body part 11, one end of the first traction wire is connected with the upper side wall of the tip part 13, the other end of the first traction wire is connected with the adjusting structure 20, one end of the second traction wire is connected with the lower side wall of the tip part 13, and the other end of the second traction wire is connected with the adjusting structure 20.
Specifically, a first lead sheath 31 and a second lead sheath 32 are symmetrically disposed on two opposite sides of the body portion 11, the first lead sheath 31 is penetrated by the first lead sheath to connect the tip portion 13 and the control structure 20, and the second lead sheath 32 is penetrated by the second lead sheath to connect the tip portion 13 and the control structure 20. It can be understood that the first lead sleeve 31 is used for limiting and guiding the movement of the first pull wire, so as to ensure that the movement track of the first pull wire is linear when the tip portion 13 is pulled, and avoid the deviation of the tip portion 13 in the bending process, and the second lead sleeve 32 is also used for the same reason.
Specifically, regulation and control structure 20 is including locating fixed disk 21 on the body 11 lateral wall and locating first pivot 22 and second pivot 23 on the fixed disk 21, first pivot 22 with through gear train 24 intermeshing transmission between the second pivot 23, first pivot 22 with be equipped with first reel 25 and second reel 26 on the second pivot 23 respectively, clockwise the winding of first tractive silk is established on first reel 25, clockwise the winding of second tractive silk is established on second reel 26. In practical applications, if the first reel 25 rotates forward, the pull wire wound clockwise around the first reel 25 is tightened, the pulling tip 13 is pulled to bend upward, and the second reel 26 rotates backward by the meshing action of the gears, the pull wire wound clockwise around the second reel 26 is loosened without disturbing the upward bending action of the tip 13, and conversely, if the tip 13 is bent downward, the first reel 25 is rotated counterclockwise.
In this embodiment, the body 11 is provided with a protective shell 40 covering the adjusting structure 20, the protective shell 40 is provided with openings for the first traction wire and the second traction wire to pass through, in this embodiment, the first rotating shaft 22 passes through the protective shell 40 and is connected with an adjusting knob 50. In practical application, an operator can rotate the control knob 50 to realize forward rotation or reverse rotation of the first reel 25, so as to realize upward or downward bending of the tip part 13, easily cross over the included angle of the renal pelvis ureter, safely place the tip part into the renal pelvis, and have little influence on the movement of a soft lens, thereby effectively improving the calculus removal rate and reducing the calculus residues.
Further, an upward adjustment indicator 61 and a downward adjustment indicator 62 are disposed on an end surface of the protective shell 40, and a pointer 63 is disposed on the adjusting knob 50. The operator can know the degree of bending of the tip portion 13 in the renal pelvis through the indicator indicated by the pointer 63, and make reference for the subsequent adjustment.
Further, a negative pressure suction tube is obliquely arranged at one end of the body part 11 far away from the tip part 13, and the negative pressure suction tube is communicated with the sheath body 10. The negative pressure suction tube can be connected with a negative pressure suction device, so that the negative pressure state in the renal pelvis in the operation process is ensured, and the risk of infection is reduced; meanwhile, stone fragments can be sucked out by negative pressure suction, and the stone breaking efficiency is improved.
The specific operation process in this embodiment is as follows: after an operator places the guide sheath into the ureter along the guide wire, the soft lens is placed into the sheath body 10, the position of the tip part 13 in the renal pelvis is observed, and the position of the calculus is searched; when a calculus is found, the soft lens is withdrawn to the tip part 13, then the regulating knob 50 is slowly regulated to place the sheath and the soft lens into the renal calyx where the calculus is located, the regulating knob 50 is fixed to establish a stable renal pelvis ureter channel, and then the negative pressure suction apparatus is connected with the negative pressure suction tube to repeatedly perform calculus breaking and removing operations.
To summer up, the utility model discloses but the guide sheath of initiative bending among the above-mentioned embodiment, through the first traction wire of operation regulation and control structure pulling or the second traction wire, realize the initiative of pointed end portion upwards or downwarping, fix the sheath body at a certain position as required afterwards for need not adjust the position of sheath repeatedly through soft mirror, solved the unable initiative bending of guide sheath among the prior art, make and need adjust its angle repeatedly at the operation in-process, lead to having increased the technical problem of patient's anesthesia risk.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. A guide sheath capable of actively bending comprises a sheath body, wherein a passage for the entry and exit of a soft lens is formed from one end of the sheath body to the other end of the sheath body in a penetrating manner;
an adjusting assembly is arranged at one end, far away from the tip portion, of the body portion and comprises a first traction wire, a second traction wire and an adjusting structure, the first traction wire and the second traction wire are respectively arranged on two opposite sides of the body portion, one end of the first traction wire is connected with the upper side wall of the tip portion, the other end of the first traction wire is connected with the adjusting structure, one end of the second traction wire is connected with the lower side wall of the tip portion, and the other end of the second traction wire is connected with the adjusting structure;
the regulation and control structure is including locating fixed disk on the body part lateral wall and locating first pivot and second pivot on the fixed disk, first pivot with through gear train intermeshing transmission between the second pivot, first pivot with be equipped with first reel and second reel in the second pivot respectively, first traction wire is clockwise around establishing on the first reel, the second traction wire is clockwise around establishing on the second reel.
2. The actively bendable introducer sheath of claim 1, wherein the body portion is symmetrically provided on opposite sides with a first lead sheath through which the first pull wire passes to connect the tip portion and the steering structure and a second lead sheath through which the second pull wire passes to connect the tip portion and the steering structure.
3. The actively bendable introducer sheath according to claim 1, wherein the body is provided with a protective shell covering the adjusting structure, the protective shell is provided with an opening for the first traction wire and the second traction wire to pass through, and the first rotating shaft or the second rotating shaft passes through the protective shell and is connected with an adjusting knob.
4. The actively bendable introducer sheath according to claim 3, wherein the end face of the sheath is provided with an upward adjustment indicator and a downward adjustment indicator, and the adjustment knob is provided with a pointer.
5. The actively bendable introducer sheath of claim 1, wherein the movable connection is a bellows.
6. The actively bendable introducer sheath according to claim 1, wherein the main body is provided with a suction tube at an end thereof away from the tip, the suction tube communicating with the sheath.
7. The actively bendable introducer sheath of claim 1, wherein the sheath body is made of a medical grade plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222328126.4U CN217611267U (en) | 2022-09-02 | 2022-09-02 | Guide sheath capable of actively bending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222328126.4U CN217611267U (en) | 2022-09-02 | 2022-09-02 | Guide sheath capable of actively bending |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217611267U true CN217611267U (en) | 2022-10-21 |
Family
ID=83635897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222328126.4U Active CN217611267U (en) | 2022-09-02 | 2022-09-02 | Guide sheath capable of actively bending |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217611267U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117137574A (en) * | 2023-08-25 | 2023-12-01 | 广州医科大学附属第一医院（广州呼吸中心） | Initiative bendable guiding sheath tube |
-
2022
- 2022-09-02 CN CN202222328126.4U patent/CN217611267U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117137574A (en) * | 2023-08-25 | 2023-12-01 | 广州医科大学附属第一医院（广州呼吸中心） | Initiative bendable guiding sheath tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9655678B2 (en) | Methods for the minimally invasive treatment of urinary stones | |
| US9675378B2 (en) | Steerable kink-resistant sheath | |
| EP1619996B1 (en) | Steerable kink-resistant sheath | |
| US20050256452A1 (en) | Steerable vascular sheath | |
| CN217611267U (en) | Guide sheath capable of actively bending | |
| US9649415B2 (en) | Surgical kits for body cavity drainage and related methods | |
| US20040249360A1 (en) | Steerable wound drain device | |
| WO2005123169A1 (en) | Steerable vascular sheath | |
| CN107550565B (en) | Flexible ureteral sheath | |
| JP2018192255A (en) | Deflectable shaver tool | |
| US20150374959A1 (en) | Body cavity drainage devices with locking devices and related methods | |
| US11058806B2 (en) | Body cavity drainage devices including drainage tubes having inline portions and related methods | |
| JPH0533736U (en) | catheter | |
| JP2023510176A (en) | Non-Circular Working Channel for ENT Tools | |
| CN220735462U (en) | Ureteroscope lower head end flexible stone-taking basket | |
| CN218651878U (en) | Passive bending urinary guide sheath | |
| US11602269B2 (en) | Oscillating endoscopic catheter for fallopian tube navigation | |
| CN221105944U (en) | Ureteroscope multifunctional sheath | |
| US20230309812A1 (en) | Oscillating endoscopic catheter for fallopian tube navigation | |
| US11344188B1 (en) | Actively bendable sheath for delivering medical instrument therethrough and method thereof | |
| CN219681432U (en) | Medical adjustable curved catheter device and interventional operation system | |
| CN215425066U (en) | Stone taking lens body and stone taking device | |
| CN110464420B (en) | Interventional device for cardiovascular therapy | |
| WO2023092797A1 (en) | Steerable structure and steerable lavage drainage device | |
| US9636127B2 (en) | Method for retrieving objects from a living body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |