WO2023205973A1 - Appareil de suture - Google Patents

Appareil de suture Download PDF

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Publication number
WO2023205973A1
WO2023205973A1 PCT/CN2022/088852 CN2022088852W WO2023205973A1 WO 2023205973 A1 WO2023205973 A1 WO 2023205973A1 CN 2022088852 W CN2022088852 W CN 2022088852W WO 2023205973 A1 WO2023205973 A1 WO 2023205973A1
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WO
WIPO (PCT)
Prior art keywords
suture
suturing
thread
traction
pipeline
Prior art date
Application number
PCT/CN2022/088852
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English (en)
Chinese (zh)
Inventor
潘湘斌
谭雄进
Original Assignee
潘湘斌
谭雄进
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 潘湘斌, 谭雄进 filed Critical 潘湘斌
Priority to PCT/CN2022/088852 priority Critical patent/WO2023205973A1/fr
Publication of WO2023205973A1 publication Critical patent/WO2023205973A1/fr

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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
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials

Definitions

  • the present application relates to the technical field of medical devices, and specifically to a suturing device.
  • Suturing devices have been widely used in surgeries. They can reach biological tissues that need suturing (such as blood vessels, unclosed foramen ovale, etc.) through blood vessels. Clinicians can operate the suturing devices outside the body to complete suturing in the body. The suturing devices in the related art are difficult to meet the suturing requirements in some special usage scenarios.
  • the present application is proposed to provide a suturing device that overcomes the above problems or at least partially solves the above problems.
  • a suturing device including: a suturing part; a first pipeline and a second pipeline, the first pipeline being rotatably disposed on the second pipeline.
  • one end of the first pipeline passes through the second pipeline and is connected to the suture part.
  • the first pipeline rotates in the second pipeline, it can drive the The suture part rotates to adjust the angle of the suture part; the operation part is used to operate the suture part to perform suturing, and the operation part is connected to an end of the first pipeline away from the suture part.
  • a suturing device including: a suturing part, an extension part and an operating part; the suturing part and the operating part are respectively connected to both ends of the extending part, and the The operating part is used to operate the suturing part for suturing;
  • the suturing part includes: a body formed with an inner cavity; a suture and a traction needle arranged in the inner cavity of the body; a thread holding member, the The wire-holding member is rotatably connected to the body, so that the wire-holding member can switch between an expanded state and a retracted state under the operation of the operating part, and a wire-locking member is provided on the wire-holding member.
  • the suture can pass through the thread-locking component; the thread-holding component can resist one side of the tissue to be sutured in the unfolded state, and the traction needle can move from the other side of the tissue to be sutured under the operation of the operating part.
  • One side passes through the tissue to be sutured to reach the thread-holding member, and pulls the thread-locking member away from the thread-holding member; the thread-locking member can pass through the tissue to be sutured under the pulling of the pulling needle, and After the traction needle completes traction, it is locked on the other side of the tissue to be sutured.
  • a suturing device including: a suturing part, an extension part and an operating part, the suturing part and the operating part are connected to the extending part, and the operating part is used to The suture part is operated to suture;
  • the suture part includes: a body connected to one end of the extension part, the body is formed with an inner cavity; a suture, the suture is arranged on the body Inner cavity; thread-holding member, which is rotatably connected to the body, so that the thread-holding member can switch between the expanded state and the contracted state under the operation of the operating part, and the suture can Passing through the inner cavity of the body and connected to the wire holding member; a tubular member, the tubular member is arranged outside the extension part and is slidably connected to the extension part, so that the tubular member can be positioned at the desired position.
  • the operating part moves toward or away from the body under the operation of the operating part, and an annular cavity is formed in the wall of the tubular member; a traction needle is arranged in the annular cavity; in the wire holding member
  • the pulling needle can pass through the annular cavity of the tubular member to reach the thread-holding member and pull the suture under the operation of the operating part, so that the suture can be separated from the
  • the thread holding member follows the movement of the pulling needle to perform suturing.
  • a suturing device including: a suturing part, an extension part and an operating part, the suturing part and the operating part are connected to the extending part, and the operating part is used to The suturing part is operated to perform suturing;
  • the suturing part includes: a body and a connecting rod, the body is detachably connected to the extension part through the connecting rod, and a formation is formed between the body and the extension part.
  • suture the suture is arranged in the inner cavity of the body; a thread-holding part, the thread-holding part is rotationally connected to the body, so that the thread-holding part can be in the operating part Switching between the expanded state and the contracted state during operation, the suture can pass through the inner cavity of the body and be connected to the thread holding member; the traction needle is arranged in the inner cavity of the extension part When the thread-holding member is in the unfolded state, the pulling needle can pass through the inner cavity of the extension part to reach the thread-holding member and pull the suture under the operation of the operating part, so that the suture is The suture can break away from the thread holder and follow the movement of the traction needle to perform suturing.
  • the suturing device according to the embodiment of the present application can meet the special suturing requirements in some usage scenarios.
  • Figure 1 is a schematic diagram of a suturing device according to an embodiment of the present application.
  • Figure 2 is a schematic diagram of the suture part according to an embodiment of the present application.
  • Figure 3 is a schematic diagram of the indication part according to an embodiment of the present application.
  • Figure 4 is a schematic diagram of the first stopper and the second stopper according to the embodiment of the present application.
  • Figure 5 is a schematic diagram of the suture part according to another embodiment of the present application.
  • Figures 6a-6e are schematic diagrams of a suturing process of a suturing device according to an embodiment of the present application.
  • Figures 7a-7b are schematic diagrams of the wire holding portion according to the embodiment of the present application.
  • Figure 8 is a schematic diagram of a suturing device according to another embodiment of the present application.
  • Figures 9a-9c are schematic diagrams of a suturing process of a suturing device according to another embodiment of the present application.
  • Figures 10a-10b are schematic diagrams of a suturing effect of a suturing device according to another embodiment of the present application.
  • FIGS 11a-11c are schematic diagrams of thread locking components according to embodiments of the present application.
  • Figure 12 is a schematic diagram of a traction needle according to an embodiment of the present application.
  • Figure 13 is a schematic diagram of a suturing device according to yet another embodiment of the present application.
  • Figures 14a-14b are schematic diagrams of a suturing process of a suturing device according to yet another embodiment of the present application.
  • Figure 15 is a schematic diagram of a suturing device according to yet another embodiment of the present application.
  • a suturing device is provided. Referring to Figures 1 and 2, it includes:
  • Suture part 10 Suture part 10; first pipeline 21 and second pipeline 22.
  • the first pipeline 21 is rotatably arranged in the lumen of the second pipeline 22, and one end of the first pipeline 21 passes through the second pipeline 22. And connected with the suture part 10, when the first pipeline 21 rotates in the second pipeline 22, it can drive the suture part 10 to rotate to adjust the angle of the suture part 10; the operating part 30 is used to operate the suture part 10 for suturing.
  • the other end of the first pipeline 21 passes through the second pipeline 22 and is connected to the operating part 30 .
  • the suturing part 10 and the operating part 30 can be suturing components and operating components used in any suturing device that are well known in the art, and are not specifically limited in this application.
  • the suturing part 10 and the operating part 30 are respectively provided at both ends of the first pipeline 21.
  • the operating part 30 is used to operate the suturing part 10.
  • the operating part 30 is provided with a plurality of operating parts, and these operating parts can be driven via transmission.
  • the structures are connected to components on the suturing part 10 to operate it, and these transmission structures can be accommodated in the lumen of the first pipeline 21 .
  • the suturing part 10 can be sent through the blood vessels at the skin opening to the tissue that needs to be sutured in the patient's body, while the operating part 30 remains outside the patient's body, and the operator can operate the suturing part 10 through the operating part 30 , to complete the stitching.
  • the first pipeline 21 is rotatably arranged in the second pipeline 22, and its two ends pass through the two ends of the second pipeline 22 respectively. That is, the first pipeline 21 and the second pipeline 22 actually form a A sleeve-like structure.
  • the first pipeline 21 rotates in the second pipeline 22, it can drive the suturing part 10 to rotate, so that the angle of the suturing part 10 can be adjusted so that the desired position can be punctured during suturing.
  • the first pipeline 21 and the second pipeline 22 will be in the blood vessel.
  • the first pipeline 21 is usually provided, although it can be directly in the blood vessel. Rotating, however, may result in greater rotational resistance, making it inconvenient for the operator to find a suitable position.
  • rotating the first pipeline 21 directly in the blood vessel will risk damaging the blood vessel wall.
  • the first pipeline 21 can rotate in the second pipeline 22, and the second pipeline 22 can remain stationary during the rotation of the first pipeline 21, which is equivalent to the rotation of the first pipeline 21.
  • a barrier is formed between the first pipeline 21 and the blood vessel wall, so that the resistance to rotation of the first pipeline 21 is greatly reduced and there is no risk of damaging the blood vessel wall.
  • a fixing structure may be provided at one end of the second pipeline 22 close to the operating part, so that this end of the second pipeline 22 can be fixed on the patient's body surface to prevent the second pipeline from being used during the suturing process. 22An unexpected rotation occurred.
  • an indicator part 221 is provided at one end of the second pipeline 22 close to the operating part 30 , and the indicator part 221 is used to indicate the rotation angle of the first pipeline 21 .
  • the indicator part 2221 the operator can control the rotation angle of the first pipeline 21 more accurately, and thereby adjust the suture part 10 more accurately.
  • the indicator part 221 can enable the operator to roughly estimate the current angle of the suturing part 10 and the location to be punctured.
  • the indicating part 221 may be disc-shaped and provided with a scale, and the first pipeline 21 is provided with an indicating point 211 close to the indicating part 221 . Therefore, the current angle of the suture part 10 can be grasped more accurately based on the scale pointed by the indication point 211 .
  • the indication point 211 may correspond to the position where the traction needle penetrates on the suture part 10, so that the current angle of the suture part 10 and the position where it can be penetrated can be obtained more intuitively.
  • the indicating part 221 can also be arranged in other suitable ways.
  • the indicating part 221 can include a Hall sensor, a magnetic ring can be provided on the first pipeline 21, and the Hall sensor can The current angle of the first pipeline 21 is sensed with the help of the magnetic ring.
  • the second pipeline 22 is provided with a locking piece 222 , and the locking piece 222 is operably resisted against the first pipeline 21 to prevent the first pipeline 21 from connecting in the second pipeline. 22 in rotation.
  • the locking member 222 can be operated to lock the position of the first pipeline 21 to prevent the operator from operating the suturing part 10 while the operating part 30 is in the process of suturing.
  • the rotation of the first pipeline 21 causes the angle of the suture part 10 to change.
  • the outer wall of the first pipeline 21 may be provided with a first stopper 212
  • the inner wall of the second pipeline 22 may be provided with a second stopper 223 .
  • the second stopper 223 The first stopper 212 can be blocked to limit the rotation range of the first pipeline 21 . It can be understood that when suturing some tissues, the first tube 21 may not be able to penetrate the tissue when it is rotated to certain angles. Therefore, the rotation of the first tube 21 at these angles can be limited to improve the suturing effect. Position adjustment efficiency.
  • the first stopper 212 and the second stopper 223 can be block structures protruding toward the lumen of the second pipeline 22, or other appropriately shaped protrusions.
  • the first stopper 212 and the second stopper 223 will block each other, so that the first pipeline 21 cannot continue to rotate along the angle.
  • two second stoppers 223 may be provided so that the first pipeline 21 can only rotate within the angular range between the two second stoppers 223 .
  • the second stopper 223 can be slidably connected to the second pipeline 22, so that the position of the second stopper 223 in the second pipeline 22 can be adjusted to change the position of the first pipeline 21.
  • the range of rotation can adapt to the needs of different techniques and types of techniques.
  • the side of the first stopper 212 facing the second stopper 223 may be provided with an inclined surface, so that when the first stopper 212 is rotated to the position of the second stopper 223, it is not only blocked , can also be fixed by the second stopper 223.
  • the second stopper 223 can be preset at a desired angle, so that when the operator rotates the first pipeline 21 until it cannot rotate, the This means that it has been rotated to the desired angle, and at this time the first pipeline 21 has been fixed, and the operation can be started directly without locking with the locking member 222 described above, which improves the efficiency of the operation.
  • the suture 10 can be configured to enter the second pipeline 22, and the first pipeline 21 can be configured to move along the axial direction of the second pipeline 22, so that the first pipeline 21 and The suture 10 is removable from the second tube 22 .
  • the suturing part 10 can sew each time. If a larger number of needles need to be sewn, the suturing part 10 may need to be taken out and replaced.
  • the first pipeline 21 and The suture part 10 can be removed from the second pipeline 22. Therefore, when the suture part 10 needs to be replaced, the first pipeline 21 can be directly pulled so that the suture part 10 reaches the outside of the body through the second pipeline 22, and the second The pipeline 22 can still remain in the body, so that after the replacement of the suture part 10 is completed, it can be directly transported to the body again through the second pipeline 22 without the need for transportation via a guide wire, thereby improving the efficiency of suturing.
  • the first pipeline 21 can be rotatably connected to the operating part 30, so that the operating part 30 does not need to rotate when the first pipeline 21 rotates, so that the operator can hold it in a more comfortable posture.
  • the operating part 30 is used to complete suturing at various angles.
  • the suturing part 10 may include: a body 11 formed with an inner cavity; a suture 12 and a traction needle 13 disposed in the inner cavity of the body 11 ; a thread holding member 14.
  • the thread-holding member 14 is rotationally connected to the body 11, so that the thread-holder 14 can switch between the expanded state and the contracted state under the operation of the operating part 30; the suture 12 can pass through the inner cavity of the body 11 and be connected to
  • the pulling needle 13 can pass through the inner cavity of the body 11 under the operation of the operating part 30 to reach the thread holder 14 and pull the suture 12 so that the suture 12 can be detached.
  • the thread holding member 14 follows the movement of the pulling needle 13 to perform suturing.
  • One end of the suture 12 can pass through the inner cavity of the body 11 and be connected to the thread holding member 14.
  • the suture 12 can pass through the inner cavity of the body 11.
  • the suture 12 can also pass through the inner cavity of the body 11 through the opening on the side of the body 11.
  • Such an arrangement depends on the type of suture. Those skilled in the art can determine the actual suture type according to the actual suture type. It needs to be set, and there is no specific limit on this.
  • Figure 1 shows the expanded state of the wire holding member 14, and Figure 2 shows the contracted state of the wire holding member 14.
  • the wire holding member 14 can be received in the body 11, thereby allowing the body 11 to Advances smoothly through blood vessels and tissues.
  • the wire holding member 14 can rotate relative to the body 11 in a direction away from the body 11, thereby switching to the unfolded state.
  • the wire holding member 14 can form a preset angle with the body 11 in the deployed state.
  • the preset angle can be set according to actual needs, or the operating portion 30 can be used to adjust the position of the wire holding member 14 with the body 11 in the deployed state. angle, there is no restriction on this.
  • the angle at which the pulling needle 13 penetrates the body 11 can be adapted to the angle formed by the thread-holding member 14 with the body 11 in the unfolded state, so that the pulling needle 13 can reach the thread-holding member 14 and accurately pull the suture 12 .
  • the angle at which the traction needle 13 penetrates the body 11 can be adjusted through the operating portion 30 .
  • the suturing part 10 may include multiple thread holding members 14, or may include only one thread holding member 14, which is not specifically limited.
  • the suture 12 is initially connected to the thread holder 14, and such connection is releasable, that is, the suture 12 can leave the thread holder 14 under the action of external force.
  • the traction needle 13 can pass through the inner cavity of the body 11 to reach the position of the thread holding member 14, and further establish a connection with the suture 12 connected to the thread holding member 14 to pull the suture. 12 moves away from the thread holding member 14, for example, pulling it through the tissue that needs to be sutured, thereby completing the suturing action.
  • the thread holder 14 can be provided with a groove
  • the suture 12 can be A lasso-like structure is rolled out in advance and placed in the groove.
  • the groove can be equipped with a limiting protrusion to maintain the lasso-like structure and prevent the lasso-like structure from falling off the groove on its own without external force.
  • the tip of the traction needle 13 can form a barb-like structure.
  • the traction needle 13 After the traction needle 13 reaches the thread holding member 14, it can pierce the groove, and then the barb-like structure can hook the lasso-like structure to establish the connection between the traction needle 13 and the suture.
  • the connection between 12 enables the pulling needle 13 to move the suture 12 away from the groove of the thread holding member 14 and move.
  • the number of pulling needles 13 is usually adapted to the number of thread-holding parts 14, that is, the thread-holding parts 14 correspond to the pulling needles 13 one-to-one to facilitate operation.
  • the traction needle 13 can also correspond to multiple thread holders 14. At this time, the traction needle 13 can sequentially pull the sutures 12 on the corresponding thread holders 14 to complete the suturing. However, this More complex modes of operation may be required to enable the pulling needle 13 to reach different thread holders 14 .
  • the suturing part 10 includes two thread-holding parts 14 , and the two thread-holding parts 14 are respectively disposed on both sides of the body 11 .
  • the two thread-holding parts 14 It can be connected to two sutures 12 respectively, so that one suture 12 can be penetrated into two different tissues.
  • two thread holding members 14 can be connected to two ends of one suture 12 respectively, so that one suture 12 can be used to connect two tissues.
  • the two ends of the suture 12 are respectively provided with different marks.
  • the different marks may refer to two marks that can be directly distinguished by the naked eye. For example, they are set in two different colors and the marks have two different marks. symbols etc. It can be understood that the suture effect not only depends on the position of the suture, but also depends on the way of knotting. For this reason, in this embodiment, different marks are respectively provided on both ends of the suture 12, so that the operator can use different Mark to identify where the two ends of the suture pass through the tissue in the patient's body, so that the appropriate method can be selected for knotting.
  • the suture part 10 includes more thread holding members 14 arranged along the circumferential direction of the body 11 .
  • Figure 5 shows an embodiment configured with four wire-holding members 14 (one wire-holding member 14 is at the rear of the body 11), and the four wire-holding members are centrally symmetrically arranged.
  • the intervals between these wire holding members 14 may be the same, and in some embodiments, they may be different. Those skilled in the art can set them according to actual needs. In embodiments where more wire holding members 14 are provided, such as six or eight wire holding members 14 , a similar arrangement may also be used, which will not be described again.
  • a plurality of sutures 12 are also configured, wherein both ends of each suture 12 are respectively connected to two symmetrically arranged thread holding members 14, so that these sutures 12 can be used during suturing. Then cross and press each other.
  • both ends of each suture 12 can also be connected to two adjacent thread holding members 14 respectively, so that these sutures 12 can be made substantially parallel to each other after sewing.
  • one end of each suture 12 can be connected to a thread holder 14, and the other end can be received in the inner cavity of the body 11, so that the same number of sutures as the number of thread holders 14 can be penetrated into the tissue. .
  • the above methods can also be used in combination to obtain more diverse suturing effects, and those skilled in the art can make settings according to actual conditions.
  • the ends of the multiple sutures 12 are respectively provided with different marks. For example, if two sutures are configured, then a total of four ends of the two sutures 12 are respectively provided with different marks, so that the operator can Divide these 4 ends into two groups and tie them as needed.
  • a gasket is provided in the middle of the suture 12, and the gasket can be received in the inner cavity of the body 11. After the suture 12 passes through the tissue, the gasket can be pulled out of the inner cavity of the body 11. cavity and cover the tissue for better suture results.
  • Figures 6a-6e take the suturing of the foramen ovale as an example to show a working mode of the suturing device.
  • two thread-holding members 14 and two corresponding traction needles 13 are provided.
  • the two ends of the suture 12 are The ends are respectively connected to two wire holding parts 14.
  • the working principle shown is that different types of sutures can be realized by changing the position of the suture 12 passing through the body 11, the way the suture 12 is connected to the thread-holding member 14, the number of the thread-holding members 14, etc.
  • the body 11 can partially pass through the gap of the foramen ovale when the wire-holding member 14 is in a contracted state, so that the wire-holding member 14 is at the position of the left atrium (LA side in the figure), and the body 11 is used for pulling the needle 13 through.
  • the exit hole is located in the right atrium (RA side in the picture). Then, referring to Figure 6a, the two wire holding members 14 in the left atrium can be switched to the unfolded state and held on the two free edges above and below the foramen ovale respectively.
  • the operator can use the operating part 30 Operate the traction needle 13 to penetrate the body 11, and make the two traction needles 13 pierce the two free edges above and below the foramen ovale respectively, and then reach the position of the corresponding wire holding member 14, and connect with the wire holding member 14. 12 sutures to establish the connection.
  • the operator can use the operating part 30 to retract the traction needle 13 into the inner cavity of the body 11.
  • the suture 12 will be pulled to pass through the two free edges above and below the foramen ovale respectively.
  • the two thread holding members 14 are connected to the two ends of a suture 12, and the middle part of the suture 12 is received in the inner cavity of the body 11.
  • the two wire-holding members 14 can be switched to the contracted state, and then, referring to Figure 6c, the body 11 can be retracted from the gap of the foramen ovale, and continue to retreat and leave the patient's body through the artery.
  • the middle part of the suture 12 will be forced to move out of the inner cavity of the body 11 to the position shown in the figure, so that the two free edges are connected.
  • the angle of the suturing part 10 can be adjusted by rotating the first pipe 21 to obtain a better suturing effect.
  • the two thread holding members 14 may They are respectively held at the positions shown by A1 and A2.
  • the suture part 10 rotates accordingly, so that the positions where the two thread holding members 14 are held are adjusted to B1 and B2.
  • the suture 12 will be approximately located at the connection between A1 and A2 and after adjustment, the suture 12 will be approximately located at the connection between B1 and B2.
  • the position of the suture 12 in the adjusted state can make the two free edges after suturing have a larger overlapping area, and the possibility of gaps appearing again is reduced.
  • the suture part 10 can be removed and another suture 12 can be installed, and then the above steps are repeated to insert the other suture 12 into the two free edges above and below the foramen ovale. , so that the two sutures 12 can exhibit the crossing effect in Figure 6e (the rotation directions of the first pipeline 21 are opposite during the two suturing processes).
  • the suture part 10 can be provided with four thread holding members 14, so that two sutures 12 can be threaded into two free edges at one time to obtain the intersection in Figure 6e Effectively, there is no need to take out the suture part 10 and reinstall the suture 12.
  • the ends of the suture 12 can be respectively provided with different marks. Still referring to Figure 6e, the two ends of one suture are marked a and b respectively, and the two ends of the other suture are marked c and d respectively, so as to operate Users can choose the appropriate knotting method, such as a+b, c+d (knot end a with end b, end c with end d), a+d, b+c The method is used to tie knots, a+c, b+d methods are used to tie knots, etc.
  • the thickness of the free edge above the foramen ovale is not the same as the free edge below, there are differences in the way and degree of movement during the contraction and relaxation of the left and right atria, which may cause the already-tied
  • the knot becomes loose after being subjected to uneven force, and a gap appears again in the foramen ovale. For this reason, it is preferable to tie the knot in the manner of a+c or b+d, that is, choose from the same free edge. Knot the two ends of the thread to avoid the above situation as much as possible.
  • the a and b ends of one suture and the c and d ends of the other suture are outside the patient's body.
  • the c and d ends can be pulled by pulling
  • the tied end is delivered into the patient's body, and then the c and d ends are tied and sent into the patient's body through a delivery device, such as a knot feeder.
  • a delivery device such as a knot feeder.
  • knot there is no restriction on this.
  • the thread holding member 14 may specifically include: an extension piece 141, one end of the extension piece 141 is rotationally connected to the body 11; a fixation piece 142 for fixing the suture 12, the fixation piece 142 It is snap-connected to the end of the extension piece 141 away from the body 11 , and the fixation piece 142 can be separated from the extension piece 141 under the traction of the traction needle 13 and follow the movement of the traction needle 13 .
  • the fixing member 142 is disposed at an end of the extending member 141 away from the body 11.
  • the specific position can be determined according to the position of the extending member 141 when the thread holding member 14 is deployed and the position reached by the traction needle 13 after passing through the body 11. It is determined that the traction needle 13 can reach the position of the fixing member 142 after passing through the inner cavity of the body 11 .
  • the fixing part 142 and the extension part 141 can be connected by a snap connection, and the connection can be disconnected under the action of a suitable external force. Therefore, when the traction needle 13 reaches the position of the fixing part 142, a connection can be established therewith. , and then when the traction needle 13 is retracted into the inner cavity of the body 11, the fixing member 142 is disconnected from the extension member 141 under the action of external force, and moves with the traction needle 13 to the inner cavity of the body 11, thereby driving it The connected sutures 12 move together.
  • the traction needle 13 pulls the suture 12 by hooking the lasso-like structure on the suture 12.
  • the traction needle 13 is directly used to hook the suture 12. It may require a more delicate operation and take a lot of time, but the fixing member 142 in this embodiment is easier to be hooked by the traction needle 13, which improves the efficiency of the operation.
  • the fixing part 142 may be provided with a first fitting part 143, and the traction needle 13 may be formed with a second fitting part 131.
  • the first fitting part 143 and the second fitting part 131 can be mated and connected, so that the traction needle can 13 can pull the fixing member 142 to move.
  • the traction needle 13 and the fixing member 142 are provided with components that can cooperate with each other, such as protrusions and grooves, etc., thereby making it easier to establish a connection between the traction needle 13 and the fixing member 142. Improve operational efficiency.
  • the first matching component 143 may include: a receiving groove 1431 formed in the fixing component 142, an elastic member 1432 connected to the receiving groove 1431, and a protrusion connected to the elastic member 1432. 1433.
  • the fixing member 142 may have a circular structure
  • the accommodating groove 1431 may be provided on the inner wall of the fixing member 142
  • the protrusion 1433 may face the center direction of the fixing member 142
  • the protrusion 1433 may It has an inclined surface facing the traction needle 13 and a platform surface away from the traction needle 13 .
  • the second fitting part 131 may be, for example, a cone-shaped structure, a truncated cone-shaped structure, or other structures equipped with an inclined surface.
  • the inclined surface of the second fitting part 131 can resist on the inclined surface of the protrusion 1433, thereby at least partially pressing the protrusion 1433 into the receiving groove 1431, so that the second matching piece 131 can slide over the protrusion 1433.
  • the protrusion 1433 can pop up from the receiving groove 1431 under the action of the elastic member 1432, thereby locking the second fitting part 131 above the platform surface of the protrusion 1433. Then, when the traction needle 13 is retracted, since the second fitting part 131 is locked above the platform surface of the protrusion 1433, a force will be exerted on the protrusion 1433, so that the fixing part 142 is disconnected from the extension part 141 and is connected according to the Traction needle 13 movements.
  • the second fitting part 131 may be a needle that pulls the needle 13.
  • the second fitting part 131 may be in a conical shape with a sharp tip so that it can serve as a needle. Puncture tissue.
  • the second fitting member 131 may be disposed at a position below the needle head of the traction needle 13 .
  • FIG. 8 Another suturing device is provided according to an embodiment of the present application. Referring to Figure 8, it includes: a suturing part 10, an extension part 20 and an operating part 30; the suturing part 10 and the operating part 30 are respectively connected to both ends of the extension part 20. , the operating part 30 is used to operate the suturing part 10 to perform suturing.
  • the extension part 20 is used to transport the suturing part 10 into the body, so that the operator can use the operating part 30 to operate the suturing part 10 outside the body to complete the suturing.
  • the extension part 20 may be the first pipeline 21 described in any of the above embodiments.
  • the extension part 20 may include the first pipeline 21 and the second pipeline 22 described in any of the above embodiments.
  • the extension part 20 may also be a pipe related to the art. The extension used in the technology is not limited to this.
  • the suturing part 10 in this embodiment includes: a body 11 formed with an inner cavity; a suture 12 and a traction needle 13 disposed in the inner cavity of the body 11; a thread-holding member 14, which is rotatably connected to the body 11 , so that the wire holding member 14 can switch between the expanded state and the contracted state under the operation of the operating part 30 .
  • the thread-holding part 14 is provided with a thread-locking part 144, and the suture 12 can pass through the thread-locking part 144; the thread-holding part 14 can resist one side of the tissue to be sutured in the unfolded state, and the traction needle 13 can move on the operating part 30 Under the operation, pass through the tissue to be sutured from the other side of the tissue to be sutured to reach the thread holding member 14, and pull the thread locking member 144 away from the thread holding member 14; the thread locking member 144 can pass through the thread to be sutured under the pulling of the pulling needle 13.
  • the tissue is sutured, and after the traction needle 13 ends traction, it is locked on the other side of the tissue to be sutured.
  • the thread-locking component 144 can be connected to the thread-holding component 14 through a detachable connection method such as snapping or sliding fit. Those skilled in the art can reasonably set the connection method, as long as it can be detached under the traction of the traction needle 13 The wire holding member 14 is sufficient.
  • the suture part 10 provided in this embodiment can be used as a supplement or replacement for the suture part 10 of the suturing device described above.
  • Those skilled in the art can also combine the suture part 10 provided in this embodiment with the suture part 10 described above.
  • the suture part 10 can be used in combination.
  • some of the thread-holding members 14 in the suture part 10 can be arranged in the manner provided in this embodiment, while the other part of the thread-holding members 14 can use other implementations described above. Set it up as shown in the example.
  • Figures 9a to 9c still take the suturing of the foramen ovale as an example to illustrate a working mode of the suturing device of this embodiment to describe the suturing part 10 in this embodiment in more detail.
  • the body 11 can pass through the gap between the two free edges of the foramen ovale, and then the wire holding member 14 can be switched to the unfolded state under the operation of the operating part 30, and resist the left side of the foramen ovale.
  • the atrium side (the LA side in the figure), and the traction needle 13 can pass through the free edge of the foramen ovale from the right atrium side (the RA side in the figure) of the foramen ovale under the operation of the operating part 30, and then reach the holding point.
  • the traction needle 13 can be connected to the thread-locking component 144 through methods such as hooking and engaging, so that it can be towed, and the thread-locking component 144 will be detached from the thread-holding component 14 after receiving the traction force.
  • the traction needle 13 can pull the thread locking member 144 to move so that it passes through the free edge of the foramen ovale to the other side of the foramen ovale. Then, referring to Figure 9c, the traction needle 13 can be operated to separate from the thread locking member 144 to end the traction, and the thread holding member 14 can also be switched to a contracted state. At this time, the suture portion 10 can be pulled to exit the foramen ovale. gap, the locking thread member 144 will be left on the right atrium side of the foramen ovale after losing the traction of the traction needle 13, and cannot return to the left atrium side of the foramen ovale.
  • the suture 12 passes through the thread locking member 144, which means that the suture 12 passes through the thread locking member 144, but its two ends are still free and not restricted by the thread locking member 144.
  • one end of the suture 12 usually passes through the tissue under the traction of the traction needle.
  • due to The suture 12 passes through the locking member 144. Therefore, after the locking member 144 reaches the other side of the tissue, part of the suture 12 will follow the locking member 144 to the other side of the tissue (for example, with the locking member 144).
  • the portion of the suture in contact with the thread member 144 is locked here, but the two ends of the suture 12 are still located on one side of the tissue, so that the suturing methods that can be achieved by the suturing device are expanded.
  • FIGS 10a and 10b still take the suturing of the foramen ovale as an example to illustrate the suturing effects obtained by the suturing devices in some embodiments.
  • the suturing part 10 may include at least two thread-holding members 14 , and the at least two thread-holding members 14 may be disposed along the circumference of the body 11 , and their distribution manner may refer to other embodiments described above. The distribution manner of the plurality of wire holding members 14 will not be described again here.
  • the suture 12 can pass through the thread locking members 144 on multiple thread holding members 14 in sequence. It should be noted that in order to obtain the suture effect in Figures 10a and 10b, one suture needs to be used. 12 to pass through all the locking thread members 144 in sequence.
  • Figure 10a and Figure 10b respectively show the suturing effect on both sides of the tissue.
  • Figure 10a is the side that the thread holder 14 resists during the suturing process
  • Figure 10b is the other side.
  • the dotted line represents the tissue where the suture 12 is located. The back.
  • the suturing device in this embodiment sends part of the suture 12 to the other side of the tissue through the thread locking component 144, and keeps the part of the suture 12 on the other side of the tissue through the thread locking component 144. side, thus achieving an effect similar to a purse-string stitch.
  • Figures 11a-11c provide several specific structures of the thread locking member 144. In addition to these structures, those skilled in the art can also choose other suitable structures.
  • the thread locking member 144 may include a threading ring 1441 and a traction ring 1442, the suture 12 may pass through the threading ring 1441, and the traction ring 1442 is connected to the threading ring 1441, and the traction needle 13 may be connected to the threading ring 1441.
  • the loop 1442 is cooperatively connected to draw the thread locking member 144 through the tissue to be sutured.
  • the traction needle 13 itself has a puncture site, so the threading ring 1441 and the traction ring 1442 can pass through the tissue to be sutured under the traction of the traction needle 13.
  • the threading ring 1441 and the traction ring 1442 themselves are annular, they cannot It has a relatively sharp puncture site, so even if it is subsequently pulled by the suture 12, it will be difficult to pass through the tissue to be sutured again, and will be locked on the other side of the tissue to be sutured.
  • the thread locking member 144 can also include a connecting rod 1443, and the threading ring 1441 and the traction ring 1442 can be connected to both ends of the connecting rod 1443 respectively.
  • the advantage of providing the connecting rod 1443 is that when the traction needle 13 After the traction is completed, when the threading ring 1441 receives the pulling force from the suture 12, the connecting rod 1443 will rotate, so that the connecting rod 1443 and the traction ring 1442, which may have been in a free state, are pressed against the tissue, and the connecting rod 1443 It cannot pass through the tissue at an angle relatively perpendicular to the tissue, thus achieving a better locking effect.
  • the traction ring 1442 can be oval-shaped, and the threading ring 1441 can be connected in the middle of the traction ring 1442.
  • the threading ring 1441 shown in Figure 11c is located inside the traction ring 1442 and connected to In the middle of the long side of the traction ring 1442, of course, the threading ring 1441 can also be provided at another position in the middle of the traction ring 1442, such as at the center of the circle of the traction ring 1442.
  • the advantage of the traction ring 1442 being arranged in an oval shape is that compared with a standard circular ring, it has relatively sharper ends.
  • the traction needle 13 pulls the traction ring 1442 to move, the traction ring 1442 moves.
  • the tip of 1442 will be approximately perpendicular to the tissue to be sutured (refer to Figure 9b), thereby making it easier to pass through the tissue to be sutured.
  • a hook-shaped body 132 may be provided on the traction needle 13 , and the hook-shaped body 132 can be hooked with the traction ring 1442 , so that the traction needle 13 can pull the thread locking member 144 .
  • the advantage of providing the hook-shaped body 132 is that the traction needle 13 can be easily connected to the traction ring 1442 and can also be separated from the traction ring 1442 relatively easily, thereby improving the operation efficiency.
  • the traction needle 13 may be formed with a blade-shaped head, and the hook-shaped body 132 may be formed in the center of the blade-shaped head, so that both sides of the hook-shaped body 132 There are blade-shaped parts (upper and lower in the figure), so that the traction needle 13 can pierce the tissue relatively easily and can retreat after piercing the tissue.
  • blade-shaped parts upper and lower in the figure
  • the movable range of the traction needle 13 may be relatively narrow, resulting in a limited range of the traction needle 13 that can move forward, and it is difficult for the thread locking member 144 to completely separate from the traction needle 13.
  • the traction needle 13 can be operated to move forward.
  • the traction needle 13 moves forward and passes through the tissue again, the traction needle 13 will not provide traction force for the thread locking component 144 when it moves forward. Therefore, the thread locking component 144 will be blocked by the tissue and cannot follow the traction needle 13 and pass through the tissue again. Therefore, Detach from the traction needle 13.
  • the traction needle 13 is configured to rotate under the operation of the operating part 30, so that the hook 132 can move toward the thread locking member 144 or away from the thread locking member 144, so that the traction needle 13 moves forward.
  • the traction needle 13 can be rotated under the operation of the operating part 30 so that the hook-shaped body 132 is away from the thread-locking member 144 to avoid retracting the hook-shaped body 132 during the process of retracting the traction needle 13.
  • Connected to the thread locking member 144 those skilled in the art can set up a suitable transmission structure to enable the operating part 30 to operate the traction needle 13 to rotate, and there is no limit to this.
  • FIG. 13 Another suturing device is provided according to an embodiment of the present application. Referring to Figure 13, it includes: a suturing part 10, an extension part 20 and an operating part 30.
  • the operating part 30 and the suturing part 10 are connected to the extension part 20, and the operating part 30 is used to operate the suturing part 10 to complete suturing.
  • the specific arrangement of the extension part 20 and the operating part 30 may refer to any of the above-described embodiments, and will not be described again here.
  • the extension part 20 may include the first pipeline 21 and the second pipeline 22 in any of the embodiments described above.
  • the extension part 20 may be the one described above.
  • the first pipeline 21 in any embodiment.
  • the suture part 10 includes: a body 11 connected to one end of the extension part 20 and forming an inner cavity; a suture 12 disposed in the inner cavity of the body 11; a thread holding member 14 , the thread holding member 14 is rotationally connected to the body 11, so that the thread holding member 14 can switch between the expanded state and the contracted state under the operation of the operating part 30, and the suture 12 can pass through the inner cavity of the body 11 and be connected to the holder.
  • the tubular member 15 is provided on the outside of the extension part 20 and is slidingly connected with the extension part 20, so that the tubular member 15 can move toward or away from the body 11 under the operation of the operating part 30.
  • the tubular member 15 An annular cavity 151 is formed in the tube wall; a traction needle 13 is provided in the annular cavity 151; when the wire holding member 14 is in an unfolded state, the traction needle 13 can penetrate the tubular member under the operation of the operating part 30 The annular cavity of 15 reaches the thread holder 14 and pulls the suture 12, so that the suture 12 can break away from the thread holder 14 and follow the movement of the traction needle 13 for suturing.
  • the suturing part 10 in this embodiment is added with a tubular member 15 , and the traction needle 13 is arranged in the annular cavity 151 of the tubular member 15 .
  • the traction needle 13 since the traction needle 13 is disposed in the inner cavity of the body 11, the position at which it penetrates the inner cavity of the body 11 is relatively fixed. In this embodiment, the position where the traction needle 13 penetrates can be flexibly changed by sliding the tubular member 15, thereby obtaining a better suturing effect.
  • the tubular member 15 can be a sleeve-like structure.
  • it can include an inner tube and an outer tube.
  • the annular cavity 151 can be formed between the inner tube and the outer tube.
  • the annular cavity 151 can be closed or can be It is partially open, and those skilled in the art can set it according to the actual situation, and there is no restriction on this.
  • the suture part 10 described in this embodiment can also be used as a replacement for the suture part 10 in the embodiment described above.
  • a first pipeline 21 and a second pipeline are provided as shown in FIG. 1
  • the tubular member 15 can be disposed outside the first pipeline 21 and slidably connected with the first pipeline 21. At this time, the tubular member 15 can be located on one side of the second pipeline 22, or on the first pipeline 22.
  • Those skilled in the art can flexibly set between the pipeline 21 and the second pipeline 22 according to actual needs, and there is no restriction on this.
  • the suture part 10 described in this embodiment may be used in combination with the suture part 10 in the above-described embodiment.
  • the suture part 10 may include multiple traction needles 13, some of which are traction needles 13.
  • the needle 13 can be disposed in the inner cavity of the body 11, and other traction needles 13 can be disposed in the annular cavity 151 of the tubular member 15.
  • the tubular member 15 can slide to prevent the traction needles 13 from passing through the body 11.
  • the position of the inner cavity is to avoid the existence of the tubular member 15 from affecting the traction needle 13 disposed in the inner cavity of the body 11 .
  • the traction needle 13 is also configured to be able to rotate under the operation of the operating part 30 to change the angle at which the traction needle 13 penetrates the annular cavity 151, thereby making the movement of the traction needle 13 more flexible and enabling A more complex suturing operation can ensure that after the position of the tubular member 15 is changed, the pulling needle 13 can still reach the thread-holding member 14 smoothly after passing through the annular cavity 151 .
  • the annular cavity 151 of the tubular member 15 can also be used to accommodate at least part of the tissue to be sutured. Therefore, the sliding of the tubular member 15 can not only change the position where the traction needle 13 penetrates, but also drive the tissue to be sutured. It moves and plays a delivery role, allowing the suturing device to perform more complex suturing operations, such as vascular anastomosis, bypass and other suturing operations.
  • a certain annular gap may be formed between the tubular member 15 and the extension part 20 , and the annular gap may be used to accommodate at least part of the tissue to be sutured, so that the tubular member 15 can also pass through the annular gap. Slide to deliver tissue to be sutured.
  • a cutting member 152 is provided at one end of the tubular member 15 close to the body 11 .
  • the cutting member 152 can be any structure capable of cutting tissue. Those skilled in the art can reasonably set the cutting member according to the specific tissue that needs to be cut. 152, there is no restriction on this.
  • the cutting member 152 may be fixedly connected to an end of the tubular member 15 close to the body 11 , or the cutting member 152 may be configured to move under the operation of the operating part 30 , and similar to the pulling needle 13 , it may be stored in In the annular cavity 151 , it can pass out from the end of the tubular member 15 close to the body 11 under the operation of the operating part 30 .
  • the cutting member 152 can be detachably connected to the tubular member 15, and the cutting member 152 of different specifications can be replaced or removed according to actual needs.
  • the cutting member 152 may not be provided on the tubular member 15, but a tubular cutting structure may be provided separately.
  • the tubular cutting structure may be disposed between the limiting portion 20 and the tubular member 15 and capable of sliding. This completes the cutting.
  • the tubular cutting structure and the tubular member 15 are alternatively provided on the outside of the limiting portion 20. After the suturing is completed, the tubular member 15 can be removed and the tubular cutting structure can be installed for subsequent cutting.
  • Those skilled in the art can also choose other reasonable ways to perform settings, which will not be described again here.
  • Blood vessel A can be arranged in the annular cavity 151 of the tubular member 15, And one end of the blood vessel A can pass through the annular cavity 151 and evert, and this step can be completed outside the body. Then, the suturing part 10 is sent into the patient's body through the extension part 20, so that the main body 11 punctures into the blood vessel B, and the thread holding member 14 opens and resists the inner wall of the blood vessel B.
  • the tubular member 15 is operated to slide toward the body 11 to deliver the blood vessel A to the outer wall of the blood vessel B.
  • the traction needle 13 is operated to penetrate the annular cavity 151. Since the blood vessel A is everted, The traction needle 13 will pass through the walls of blood vessel A and blood vessel B in order to reach the thread holding member 14.
  • the traction wire can be used to pull the suture for suturing to complete the anastomosis of the blood vessels.
  • blood vessel A and blood vessel B are connected. One end can still maintain the eversion effect, thereby avoiding stenosis in blood vessel A after anastomosis.
  • the blood vessel B can be operated by operating the tubular member 15 and/or Or the cutting member 152, so that the cutting member 152 cuts the blood vessel B inside the anastomosis edge of the blood vessel, so that the blood vessel B and the blood vessel A are connected to complete the anastomosis operation.
  • the vascular anastomosis operation can be completed even if the tubular member 15 is not provided.
  • the suturing device in this embodiment can still include a suturing part 10, an extension part 20 and an operating part 30 ( The operating part 30 is not shown in this figure).
  • the suturing part 10 also includes the body 11, the suture 12, the pulling needle 13 and the thread holding member 14 as described in any of the above embodiments.
  • this The extension part 20 in the embodiment may also be the first pipeline 21 described above.
  • the body 11 of the suture part 10 is designed to be detachably connected to the extension part 20 through a connecting rod 16, and a connection between the body 11 and the extension part 20 can be formed.
  • An annular gap is designed to be formed.
  • the traction needle 13 and the blood vessel A can be arranged in the inner cavity of the extension part 20.
  • the body 11 can be removed first, the blood vessel A can be installed in the inner cavity of the extension part 20, and eversion is completed, and then , install the main body 11.
  • the everted part of the blood vessel A will penetrate the inner cavity of the main body 11 from the annular gap between the main body 11 and the extension part 20.
  • the described steps are used to complete the vascular anastomosis operation, in which the traction needle 13 can pass through the inner cavity of the extension part 20 under the operation of the operating part 30 to reach the thread holding member 14 for suturing.
  • the tubular member 15 there is no need to provide the tubular member 15 outside the extension part 20, and the inner cavity of the extension part 20 is directly used to accommodate the blood vessel A, thereby reducing the volume of the suturing device and simplifying the structure, making it more convenient to manufacture the suturing device.
  • the tubular member 15 after the blood vessel A is installed in the inner cavity of the extension 20, the body 11 needs to be installed. At this time, the connecting rod 16 needs to pass through the blood vessel A. There may be a risk of damaging blood vessels during this procedure.
  • the body 11 can be configured to move toward or away from the extension portion 20 under the operation of the operating portion 30 , that is, relative movement can be performed between the body 11 and the extension portion 20 , thereby completing the delivery of the blood vessel A. Operation, in some embodiments, the blood vessel delivery operation can also be completed by directly pushing the extension part 20 forward.
  • a cutting member can be disposed in the inner cavity of the extension part 20 to complete the cutting operation after vascular anastomosis. Those skilled in the art can set it according to actual needs, and there is no limit to this.

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Abstract

L'invention concerne un appareil de suture, comprenant : une partie de suture (10) ; une première conduite (21) et une deuxième conduite (22), la première conduite (21) étant disposée de manière rotative dans une cavité de la deuxième conduite (22), une extrémité de la première conduite (21) s'étendant hors de la deuxième conduite (22) et étant reliée à la partie de suture (10), et lors de la rotation dans la deuxième conduite (22), la première conduite (21) pouvant entraîner la partie de suture (10) en rotation de façon à régler l'angle de la partie de suture (10); et une partie d'actionnement (30), configurée pour actionner la partie de suture (10) pour effectuer la suture, l'autre extrémité de la première conduite (21) s'étendant hors de la deuxième conduite (22) et étant reliée à la partie d'actionnement (30). L'appareil de suture peut satisfaire des exigences de suture spéciales dans certaines scènes d'application.
PCT/CN2022/088852 2022-04-24 2022-04-24 Appareil de suture WO2023205973A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/088852 WO2023205973A1 (fr) 2022-04-24 2022-04-24 Appareil de suture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/088852 WO2023205973A1 (fr) 2022-04-24 2022-04-24 Appareil de suture

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WO2023205973A1 true WO2023205973A1 (fr) 2023-11-02

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1292665A (zh) * 1998-03-09 2001-04-25 苏图诺有限公司 一种用于封闭血管中的开口的缝合装置
US20050149066A1 (en) * 2003-12-23 2005-07-07 Joshua Stafford Suturing device with split arm and method of suturing tissue
CN109009279A (zh) * 2018-05-28 2018-12-18 德清朗特医疗科技有限公司 安全型筋膜吻合器及使用方法
CN209611222U (zh) * 2018-12-04 2019-11-12 何璐 卵圆孔未闭缝合器
CN213430323U (zh) * 2020-07-13 2021-06-15 邦尼医疗科技(常州)有限公司 可多方位转动调节的腹腔镜缝合器
CN113907816A (zh) * 2021-11-08 2022-01-11 山西医科大学第一医院 一种腹壁全层缝合器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1292665A (zh) * 1998-03-09 2001-04-25 苏图诺有限公司 一种用于封闭血管中的开口的缝合装置
US20050149066A1 (en) * 2003-12-23 2005-07-07 Joshua Stafford Suturing device with split arm and method of suturing tissue
CN109009279A (zh) * 2018-05-28 2018-12-18 德清朗特医疗科技有限公司 安全型筋膜吻合器及使用方法
CN209611222U (zh) * 2018-12-04 2019-11-12 何璐 卵圆孔未闭缝合器
CN213430323U (zh) * 2020-07-13 2021-06-15 邦尼医疗科技(常州)有限公司 可多方位转动调节的腹腔镜缝合器
CN113907816A (zh) * 2021-11-08 2022-01-11 山西医科大学第一医院 一种腹壁全层缝合器

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