CN217566169U - Cavity tube adjusting instrument - Google Patents
Cavity tube adjusting instrument Download PDFInfo
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- CN217566169U CN217566169U CN202220249119.2U CN202220249119U CN217566169U CN 217566169 U CN217566169 U CN 217566169U CN 202220249119 U CN202220249119 U CN 202220249119U CN 217566169 U CN217566169 U CN 217566169U
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- surround
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Abstract
The present application provides a lumen regulating instrument comprising: a body; a fixed surround fixedly connected to the body; the movable surrounding piece is movably connected with the body; the fixed surrounding piece and the movable surrounding piece can be combined with each other to form a surrounding part which can circumferentially surround the target cavity tube; the movable surround is reciprocally movable relative to the body to adjust the cross-sectional area of the surround and to deform the cross-section of the target lumen to different degrees depending on the different cross-sectional areas of the surround. Therefore, the cavity tube adjusting instrument can freely and flexibly adjust the cross-sectional area of the surrounding part so as to achieve the aim of accurately adjusting and controlling the flow rate of liquid in the target cavity tube.
Description
Technical Field
The embodiment of the application relates to the technical field of medical instruments, in particular to a lumen tube adjusting instrument.
Background
In surgical operation, when tissues and organs with relatively rich blood flow are treated, in order to avoid excessive blood loss during operation, blood supply to the tissues and organs is often reduced by controlling the blood flow rate of main blood vessels of the tissues and organs, so that the risk of excessive blood loss of target tissues and organs during operation is reduced. For example, in liver resection surgery, it is common to reduce the risk during liver resection surgery by blocking blood flow in the hepatic portal blood vessels.
Current blood flow control apparatus is mainly through wrapping up the blood vessel to the free end that will block the area is fixed on the sheath pipe, then realizes the control to the liver portal blood flow through rear end control unit.
However, the operation of this blood flow control apparatus still has the following disadvantages: 1. after the blocking band bypasses the blood vessel, since the fixing device of the blocking band is positioned inside the sheath tube, the position of the sheath tube can be changed in the process of winding the blocking band, so that the fixing operation of the blocking band is difficult. 2. The blocking band is long, and after the blocking band is wrapped around a blood vessel, a doctor needs to fix the blocking band on the sheath tube, so that the blocking band cannot be tightly attached to the hepatic portal blood vessel, the gap between the blocking band and the hepatic portal blood vessel after the blocking band is fixed is large, and the design of the sheath tube is correspondingly long. 3. The hepatic portal of a patient who usually undergoes one hepatic operation is adhered to other tissues around the hepatic portal, which causes that in the second hepatic operation, the blocking tape cannot easily pass through the tissue gap around the hepatic portal and cannot wrap the hepatic portal blood vessel.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present application provides a lumen adjustment instrument to overcome or at least partially address the above-mentioned problems.
Embodiments of the present application provide a lumen adjusting instrument, comprising: a body; a fixed surround fixedly connected to the body; the movable surrounding piece is movably connected with the body; the fixed surrounding part and the movable surrounding part can be combined with each other to form a surrounding part which can circumferentially surround the target cavity tube; the movable surround is reciprocally movable relative to the body to adjust the cross-sectional area of the surround and to deform the cross-section of the target lumen to different degrees depending on the different cross-sectional areas of the surround.
Optionally, the fixing surrounding piece comprises a fixing surrounding section exposed out of the body; the movable surrounding piece comprises a movable surrounding section and a movable adjusting section which is connected with the movable surrounding section and movably arranged in the body in a penetrating way; the fixed surrounding section and the movable surrounding section can be mutually positioned and combined to form the surrounding part exposed out of the body.
Optionally, the body is a hollow structure and has a distal end; the movable adjustment section is axially movable relative to the body in a first direction to expose a portion of the movable encircling section inside the body to the body via the distal end such that a cross-sectional area of the encircling portion circumferentially encircling the target lumen is increased; alternatively, the movable adjustment section may be axially movable relative to the body in a second direction opposite the first direction to cause a portion of the movable encircling section exposed to the body to enter the interior of the body via the distal end such that a cross-sectional area of the encircling portion circumferentially encircling the target lumen is reduced.
Optionally, the fixed surrounding segment and the movable surrounding segment are made of a flexible material, and the flexible material at least comprises one of silica gel, latex, resin, polyester and polyurethane; the fixed surrounding section and the movable surrounding section comprise a hollow structure or a solid structure, and the cross section of the fixed surrounding section and the cross section of the movable surrounding section at least comprise one of a circle, an ellipse and a rectangle.
Optionally, the apparatus further comprises: a locking portion; the penetrating part can be arranged on the fixed surrounding section or the movable surrounding section; the fixing surrounding section or the movable surrounding section which is not provided with the penetrating part can be arranged in the penetrating part in a penetrating way, and the locking part can be fixedly combined with the fixing surrounding section or the movable surrounding section arranged in the penetrating part in a penetrating way and abuts against at least one side of the penetrating part so as to enable the fixing surrounding section and the movable surrounding section to be mutually positioned and combined.
Optionally, the penetrating portion includes at least one penetrating hole distributed on the fixed surrounding section or the movable surrounding section.
Optionally, the through hole comprises one of a circular section, an elliptical section, a rectangular section, and a straight section; the through holes comprise tooth-shaped hole walls or smooth hole walls.
Optionally, the ends of the stationary and/or movable surrounds further comprise a piercing structure for providing the stationary or movable surrounds through a target tissue space to reach a predetermined tissue location.
Optionally, the locking portion comprises a medical clip; wherein, the medical clip at least comprises one of a circular section, a rectangular section, a diamond-shaped section, a U-shaped section and a V-shaped section.
Optionally, the fixed surrounding part or the movable surrounding part provided with the penetrating part further comprises an operating part adjacent to the penetrating part, and the penetrating part can be positioned by the operating part so as to be combined with the fixed surrounding part or the movable surrounding part which is not provided with the penetrating part.
Optionally, the instrument further comprises a drive structure positioned at the proximal end of the body and coupled to the movable surround for controlling movement of the movable surround relative to the body.
In summary, the lumen adjusting instrument of the present embodiment can precisely and rapidly adjust the cross-sectional area of the surrounding portion by controlling the reciprocating movement of the movable surrounding member relative to the body, so as to achieve the purpose of precisely controlling the flow rate of the liquid in the target lumen.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 to 3 are schematic diagrams of the overall structure of various embodiments of the lumen adjusting instrument of the present application.
Fig. 4 to 11D are partial schematic structural views of different embodiments of the lumen adjusting instrument of the present application.
FIG. 12 is a schematic diagram of an application example of the lumen regulating instrument of the present application.
Element number
1: a lumen conditioning instrument;
2: a target lumen;
10: a body;
12, a distal end;
14: a proximal end;
20: a stationary surround;
22: fixing the surrounding section;
30: a movable surround;
32: a movable surrounding section;
34: moving the adjusting section;
40: a surrounding portion;
50: a locking portion;
52: a puncture structure;
60: a penetration part;
62: perforating holes;
70: a medical clip;
72: pressing the pipes;
74: an operation section;
76: an identification unit;
80: a drive structure.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.
With the revolution of surgical medical instruments, the liver cutting technology is gradually improved to a high-frequency electrosurgery workstation (energy platform), an ultrasonic knife, a Ligasure vessel closer and the like by the clamp bundling. The technologies improve the condition of bleeding in the process of hepatectomy, but the hemostatic effect is better aiming at small blood vessels, and the traditional technology for controlling controlled release by binding hepatic blood vessels is still needed for controlling bleeding close to complicated hepatectomy operations such as large blood vessels, special parts and the like.
Therefore, the widespread use of laparoscopic hepatectomy and new surgical medical instruments places higher demands on bleeding control.
Aiming at specific hepatic vessels, the bleeding control effect can be achieved through the design of the special forceps holder, the bleeding control effect for liver surgery is improved, however, the special forceps holder has higher operation requirements on the surgery technique of a surgeon, and the technique cannot be popularized.
Furthermore, in the chinese patent application No. 201110096098.1, a jaw structure with separable function is proposed, which can be implemented in a laparoscopic environment, and can ensure that the view of the laparoscope is not blocked during the bleeding control process. And the accuracy of blood flow control is increased by changing the head end shape of the clamp. However, the safety of the clamp structure in the butt joint, control and operation under the endoscope still has defects, the clamp has the problem of closing effect on the clamping operation of the target blood vessel under the endoscope environment, and in addition, the limitation of the visual field also causes the safety hazard problem of the operation.
Therefore, how to provide a new blood flow control technology can change the traditional mode of blocking first and then operating into the mode of blocking first and then operating according to the needs, can change the mode of blocking blood vessels for a long time and difficult to adjust in time into the mode of blocking blood vessels by controlling blood vessel blood flow in real time, and change the mode of blocking operation by matching multiple people into the mode of blocking by one person and completing the operation, thereby reducing the labor cost, ensuring the safety of patients in the perioperative period, reducing the risk of the operation, reducing the technical requirements of the operation of the operator, being easy for the operator to block the operation under the laparoscopic environment, and the like, and becomes the problem to be solved urgently.
The following further describes specific implementations of the embodiments of the present application with reference to the drawings of the embodiments of the present application.
As shown in fig. 1 to 3, the lumen adjusting instrument 1 of the present application mainly includes a body 10, a fixed surround 20, and a movable surround 30.
The fixed surrounding member 20 is fixedly connected to the body 10, and the movable surrounding member 30 is movably connected to the body 10.
In this embodiment, the stationary surround 20 and the movable surround 30 are combined with each other to form a surround 40 (see fig. 3) that circumferentially surrounds the target lumen 2.
Alternatively, the target lumen 2 may be a deformable lumen having an internal lumen, including but not limited to, blood vessels, bile ducts, lymphatic vessels, trachea, ureters, lumens of the digestive system, and various biological tissue lumens.
In this embodiment, the movable surrounding member 30 is reciprocally movable relative to the body 10 to adjust the cross-sectional area of the surrounding portion 40 and to allow the cross-section of the target lumen 2 to be deformed to different degrees according to different cross-sectional areas of the surrounding portion 40.
Specifically, when the cross-sectional area of the surrounding portion 40 circumferentially surrounding the target lumen 2 is larger, the smaller the force of the surrounding portion 40 applied to the target lumen 2, the smaller the degree of deformation of the target lumen 2, and the faster the flow rate of the fluid in the target lumen 2; conversely, when the cross-sectional area of the surrounding portion 40 circumferentially surrounding the target lumen 2 is smaller, the target lumen 2 is subjected to a larger force by the surrounding portion 40, the degree of deformation of the target lumen 2 is larger, and the flow rate of the fluid in the target lumen 2 is slower.
In the present embodiment, the body 10 is a hollow structure and has a distal end 12 (e.g., a distal opening) for the movable surrounding element 32 to extend from the inside of the body 10 to the outside of the body 10.
Referring to fig. 2, the fixed surrounding member 20 may be fixedly connected to the distal end 12 of the body 10 and includes a fixed surrounding section 22 exposed from the body 10, and the movable surrounding member 30 may include a movable surrounding section 32 and a movable adjusting section 34 connected to the movable surrounding section 32 and movably disposed in the body 10.
Specifically, the movable adjustment segment 42 is axially movable relative to the body 10 in a first direction (e.g., direction F1 shown in fig. 2) to expose a portion of the movable encircling segment 32 inside the body 10 to the body 10 via the distal end 12 of the body 10, such that the cross-sectional area of the encircling portion 50 circumferentially encircling the target lumen 2 is increased.
Alternatively, the movable adjustment section 42 may be axially moved relative to the body 10 in a second direction (e.g., the direction F2 shown in fig. 2) opposite the first direction to allow a portion of the movable encircling section 32 exposed to the body 10 to enter the interior of the body 10 via the distal end 12 such that the cross-sectional area of the encircling portion 50 circumferentially encircling the target lumen 2 is reduced.
In this embodiment, the fixed surrounding segment 22 or the movable surrounding segment 32 can be made of a flexible material. Alternatively, the flexible material may include, but is not limited to: silicone, latex, resin, polyester, polyurethane, and the like.
In the present embodiment, the fixed surrounding segment 22 or the movable surrounding segment 32 may include a hollow structure or a solid structure.
Preferably, the surface of the fixed surrounding segment 22 or the movable surrounding segment 32 may be coated with an antibacterial layer or a lubricating layer.
In this embodiment, the cross-section of the fixed surrounding segment 22 or the movable surrounding segment 32 may include, but is not limited to: circular, oval, or rectangular.
In this embodiment, the lumen adjusting instrument 1 further includes a locking portion 50 and a penetrating portion 60.
In the present embodiment, the penetrating portion 60 may be disposed on the fixed surrounding segment 22 or the movable surrounding segment 32, wherein the fixed surrounding segment 22 or the movable surrounding segment 32 without the penetrating portion 60 may be disposed in the penetrating portion 60, and the locking portion 50 may be fixedly coupled to the fixed surrounding segment 22 or the movable surrounding segment 32 of the penetrating portion 60 and abut against at least one side of the penetrating portion 60, so as to allow the fixed surrounding segment 22 and the movable surrounding segment 32 to be mutually positioned and coupled.
For example, in the embodiment shown in fig. 3, the penetrating portion 60 can be disposed on the fixed surrounding segment 22, the movable surrounding segment 32 can be disposed in the penetrating portion 60, and the locking portion 50 can be further fixedly combined on the movable surrounding segment 32 disposed in the penetrating portion 60 and abut against at least one side of the penetrating portion 60, so that the fixed surrounding segment 22 and the movable surrounding segment 32 are mutually positioned and combined.
In the present embodiment, the through-holes 60 may include at least one through-hole 62 (refer to fig. 4 and 5) distributed on the fixed surrounding element 20 or the movable surrounding element 30.
In the case that the through-hole portion 60 includes a plurality of through-holes 62, the through-holes 62 may be distributed on the fixed surrounding section 22 or the movable surrounding section 32 at intervals.
Alternatively, the through-holes 62 may include, but are not limited to: a circular cross section (refer to fig. 4, 5), an oval interface (refer to fig. 6), a rectangular cross section (refer to fig. 7), a straight cross section (refer to fig. 8), and the like.
Alternatively, the through-holes 62 may include a toothed hole wall (refer to fig. 9) or a smooth hole wall (refer to fig. 4 to 8).
Optionally, the ends of the fixed and/or movable surrounds 20, 30 may further include a piercing structure 52 (see fig. 10) for providing the fixed or movable surrounds 20, 30 to pass through the target tissue space to reach the preset tissue location.
Preferably, the puncturing structure 52 may be provided at the end of the stationary surround 20 or the movable surround 30 which is not provided with the penetration portion 60.
Alternatively, the piercing structure 52 may be tapered or oblate and the material of construction of the piercing structure 52 may be somewhat harder than the material of construction of the stationary surround 20 or the movable surround 30.
Alternatively, the piercing structure 52 may be integrally formed with the fixed and/or movable surrounds 20, 30, or the piercing structure 52 may be a separate component positioned at the end of the fixed and/or movable surrounds 20, 30.
Optionally, the locking portion 50 may include a crimp tube 72 (see fig. 3).
Optionally, the locking portion 50 may also include a medical clip 70.
In the present embodiment, the medical clip 70 may include at least a circular section (not shown), a rectangular section (refer to fig. 11A), a diamond section (refer to fig. 11B), a U-shaped section (refer to fig. 11C), a V-shaped section (refer to fig. 11D), and the like.
Optionally, the fixed surrounding element 20 or the movable surrounding element 30 provided with the through-hole 60 may further include an operating portion 74 (refer to fig. 4) adjacent to the through-hole 60, and the through-hole 60 may be positioned by the operating portion 74 so as to be combined with the fixed surrounding element 20 or the movable surrounding element 30 not provided with the through-hole 60.
Optionally, the lumen adjusting instrument 1 may further include an identification unit 76 (refer to fig. 12) provided on the body 10 and/or the movable surround 30 for identifying a moving distance of the movable surround 30 with respect to the body 10.
Alternatively, the body 10 may be made of a transparent material for observing the moving distance of the movable surrounding element 30 relative to the body 10.
Optionally, the lumen adjusting instrument 1 may further comprise an actuating structure 80 (see FIG. 12) positionable at the proximal end 14 of the body 10 and coupled to the movable surround 30 for controlling movement of the movable surround 30 relative to the body 10 to thereby adjust the cross-sectional area of the surround 40.
To sum up, the lumen adjusting instrument of the present application can form a surrounding portion circumferentially surrounding the target lumen tube by the fixed surrounding member of the fixed connecting body and the movable surrounding member of the movable connecting body, and move relative to the body by controlling the movable surrounding member to adjust the cross-sectional area of the surrounding portion, so that the target lumen tube can generate different degrees of deformation according to different cross-sectional areas of the surrounding portion, thereby achieving the purpose of accurately controlling the flow rate of the liquid in the target lumen tube, and has the advantages of simple and small structural design and convenient operation.
In addition, the locking parts and the penetrating parts are respectively arranged on the fixed surrounding part and the movable surrounding part, so that the fixed surrounding part and the movable surrounding part can be positioned and combined, and the device has the advantages of simple structure, low manufacturing cost and convenience in operation.
Moreover, the puncture structure arranged at the end part of the fixed surrounding part and/or the movable surrounding part can be used for puncturing the tissue gap around the hepatic portal, thereby conveniently realizing the surrounding positioning of the target lumen tube and being beneficial to the smooth execution of the operation.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (11)
1. A lumen adjusting instrument comprising:
a body;
a fixed surround fixedly connected to the body;
the movable surrounding piece is movably connected with the body;
the fixed surrounding piece and the movable surrounding piece can be combined with each other to form a surrounding part which can circumferentially surround the target cavity tube;
the movable surround is reciprocally movable relative to the body to adjust the cross-sectional area of the surround and to deform the cross-section of the target lumen to different degrees depending on the different cross-sectional areas of the surround.
2. The apparatus according to claim 1,
the fixing surrounding piece comprises a fixing surrounding section exposed out of the body;
the movable surrounding piece comprises a movable surrounding section and a movable adjusting section which is connected with the movable surrounding section and movably arranged in the body in a penetrating way;
the fixed surrounding section and the movable surrounding section can be mutually positioned and combined to form the surrounding part exposed out of the body.
3. The apparatus according to claim 2, wherein said body is a hollow structure and has a distal end;
the movable adjustment section is axially movable relative to the body in a first direction to expose a portion of the movable encircling section inside the body to the body via the distal end such that a cross-sectional area of the encircling portion circumferentially encircling the target lumen is increased; alternatively, the first and second liquid crystal display panels may be,
the movable adjustment section is axially movable relative to the body in a second direction opposite the first direction to cause a portion of the movable encircling section exposed to the body to enter the interior of the body via the distal end such that a cross-sectional area of the encircling portion circumferentially encircling the target lumen is reduced.
4. The apparatus according to claim 2,
the fixed surrounding section and the movable surrounding section are made of flexible materials, and the flexible materials at least comprise one of silica gel, latex, resin, polyester and polyurethane;
the fixed surrounding section and the movable surrounding section comprise a hollow structure or a solid structure, and the cross section of the fixed surrounding section and the cross section of the movable surrounding section at least comprise one of a circle, an ellipse and a rectangle.
5. The apparatus according to claim 2, further comprising:
a locking portion;
the penetrating part can be arranged on the fixed surrounding section or the movable surrounding section;
the fixing surrounding section or the movable surrounding section which is not provided with the penetrating part can be arranged in the penetrating part in a penetrating way, and the locking part can be fixedly combined with the fixing surrounding section or the movable surrounding section arranged in the penetrating part in a penetrating way and abuts against at least one side of the penetrating part so as to enable the fixing surrounding section and the movable surrounding section to be mutually positioned and combined.
6. The apparatus according to claim 5 wherein said penetrations comprise at least one perforation distributed through said stationary surrounding section or said movable surrounding section.
7. The apparatus according to claim 6,
the through hole comprises one of a circular section, an elliptical section, a rectangular section and a straight section;
the through holes comprise tooth-shaped hole walls or smooth hole walls.
8. The device of claim 6, wherein the ends of the stationary and/or movable surrounds further comprise a piercing structure for providing the stationary or movable surrounds through a target tissue space to reach a preset tissue location.
9. The instrument of claim 5, wherein the locking portion comprises a medical clip; wherein the content of the first and second substances,
the medical clip at least comprises one of a circular section, a rectangular section, a diamond section, a U-shaped section and a V-shaped section.
10. The apparatus according to any one of claims 5 to 7 wherein the fixed or movable surround provided with the penetrating portion further comprises an operating portion adjacent the penetrating portion by which the penetrating portion can be positioned for engaging the fixed or movable surround not provided with the penetrating portion.
11. The apparatus according to claim 1 further comprising a drive structure positioned at the proximal end of the body and coupled to the movable surround for controlling movement of the movable surround relative to the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220249119.2U CN217566169U (en) | 2022-01-30 | 2022-01-30 | Cavity tube adjusting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220249119.2U CN217566169U (en) | 2022-01-30 | 2022-01-30 | Cavity tube adjusting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217566169U true CN217566169U (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220249119.2U Active CN217566169U (en) | 2022-01-30 | 2022-01-30 | Cavity tube adjusting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217566169U (en) |
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2022
- 2022-01-30 CN CN202220249119.2U patent/CN217566169U/en active Active
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Assignee: Shanghai kanglulian Medical Technology Co.,Ltd. Assignor: Shanghai Oriental Medical Innovation Research Institute Contract record no.: X2023990000689 Denomination of utility model: Lumen regulating instrument Granted publication date: 20221014 License type: Common License Record date: 20230705 |