CN112206028B - Portable hepatic portal blocking device - Google Patents
Portable hepatic portal blocking device Download PDFInfo
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- CN112206028B CN112206028B CN202011097470.6A CN202011097470A CN112206028B CN 112206028 B CN112206028 B CN 112206028B CN 202011097470 A CN202011097470 A CN 202011097470A CN 112206028 B CN112206028 B CN 112206028B
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- blocking
- portable
- clamping
- connecting rod
- blocking belt
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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
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12009—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
Abstract
The invention relates to the technical field of medical auxiliary instruments, in particular to a portable hepatic portal blocking device, which comprises: a guide tube for supplying a blocking tape to a position to be blocked; the locking part is arranged at the middle position of the discharging ends of the two channels; the clamping part comprises a base body, two symmetrically arranged connecting rod groups and a one-way locking structure; one end of the connecting rod group is connected with the force application part to clamp the blocking belt, and the one-way locking structure is used for keeping the clamping action; the seat body is connected with the guide pipe through the hook body structure, the blocking belt at the tail end of the channel forms an annular body structure through the movement of the guide pipe after the connection relation is removed, and the size of the annular body structure is adjusted through the control of the channel feeding end on the blocking belt. According to the invention, a ring forming mode which is more convenient and fast to the blocking band is obtained through the structural improvement of the hepatic portal blocking device, the size of the ring structure is convenient to control, and the device can be universally used in laparoscopic and open-type operations only by changing the structural forms of the guide tube and the clamping part in the application process.
Description
Technical Field
The invention relates to the technical field of medical auxiliary instruments, in particular to a portable porta hepatis blocker.
Background
The hepatic portal block is an effective way to control bleeding in clinical liver surgery, and the liver is the largest parenchymal organ of the human body and has unique dual blood supply of portal vein and hepatic artery, and blood circulation and abundance. In liver surgery, hemorrhage of different degrees can occur in the operation and after the operation, the amount of bleeding is in positive correlation with the incidence and the fatality rate of postoperative complications, the control and the reduction of the hemorrhage in the liver surgery are particularly important, the existing hepatic portal blocking device is complex to operate, and the time is wasted in the repeated operation process.
In view of the above, the inventor of the present invention has actively studied and innovated based on the practical experience and professional knowledge of many years of engineering application of such products and the application of theory, in order to create a portable hepatic portal blocking device, which is more practical.
Disclosure of Invention
The invention aims to provide a portable hepatic portal blocking device, thereby effectively solving the problems in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that:
a portable porta-hepatis blocker, comprising:
the guide pipe comprises two channels which are arranged in parallel and are respectively used for supplying a blocking belt to a position to be blocked, and the tail ends of the channels form a semicircular track so as to change the direction of the blocking belt by 180 degrees;
the locking part is arranged at the middle position of the discharge ends of the two channels;
the clamping part comprises a base body, two symmetrically arranged connecting rod groups and a one-way locking structure; the connecting rod group is arranged on the base body, one end of the connecting rod group is connected with the force application part, the other end of the connecting rod group clamps the blocking belt under the pulling of the force application part, and the one-way locking structure is used for keeping the clamping action; the seat body is connected with the guide pipe through a hook body structure, the connection relation is that after the clamping action is completed, the relative motion between the seat body and the guide pipe is removed, after the removal, the motion of the guide pipe enables the blocking belt at the tail end of the channel to form a ring body structure, the ring body structure clamps the end part of the blocking belt in the locking part through the clamping part and is closed, and the size of the ring body structure is adjusted through the control of the channel feeding end on the blocking belt.
Furthermore, two discharging nozzles are symmetrically arranged at the tail ends of the two channels and are respectively used for guiding the two blocking belts towards the opposite direction.
Further, the pedestal includes the main part, and for the mounting panel that the main part both sides extend, first connecting rod middle part region in the linkage with the mounting panel rotates to be connected, and is located and presss from both sides tight one side to blocking the area, two first connecting rod becomes X form and intersects, and through the end to blocking the area and press from both sides tightly, the other end and the second connecting rod one end of first connecting rod rotate to be connected, two the other end of second connecting rod all with one-way locking structure rotates to be connected.
Furthermore, the end part of the mounting plate is of a smooth curved surface structure.
Further, the guide tube is provided with at least one open end for opening a partial area of the channel.
Furthermore, the stand pipe is locally hollow, an opening is formed in the side wall of the hollow area, a convex edge is arranged on the periphery of the opening, the hook body structure is arranged on the surface, attached to the stand body and the stand pipe, of the stand pipe, and the hook body structure is arranged on the convex edge in a hanging mode to achieve unidirectional fixation.
Furthermore, the one-way locking structure comprises a locking seat fixedly connected with the main body, and a plurality of barb structures are arranged on the locking seat in parallel;
still include two the second connecting rod tip is fixed and is rotated the latch segment of being connected with the two, be provided with on the latch segment with the draw-in groove that barb structure corresponds, the draw-in groove is one-way to be passed through the barb structure, and cut to when reverse.
Further, the intermediate position of stand pipe end portion is provided with the mounting groove, the mounting groove has two installation faces of parallel arrangement, locking portion is including two clamping pieces that the symmetry set up, clamping piece tip with installation face laminating installation, and the middle part is outstanding arc structure.
Through the technical scheme of the invention, the following technical effects can be realized:
according to the invention, a ring forming mode which is more convenient and fast to the blocking band is obtained through the structural improvement of the hepatic portal blocking device, the size of the ring structure is convenient to control, and the device can be universally used in laparoscopic and open-type operations only by adaptively changing the structural forms of the guide tube and the clamping part in the application process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the portable hepatic portal blocking device of the present invention (omitting the linkage);
FIG. 2 is an enlarged view of a portion of FIG. 1 at B;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is an elevation view of the end position of the guide tube;
FIG. 5 is an enlarged view of a portion of FIG. 1 at C;
FIG. 6 is a partial cross-sectional view of the connection between the seat and the guide tube;
FIG. 7 is a simplified schematic diagram of a portable porta-hepatis blocker according to the present invention;
FIG. 8 is a schematic diagram of the operation of the portable hepatic portal blocking device of the present invention;
FIG. 9 is a schematic view of the winding pattern of the blocking tape;
FIG. 10 is an enlarged view of a portion of FIG. 4 at D;
reference numerals: the device comprises a guide pipe 1, a channel 11, a hollow area 12, a mounting groove 13, a locking part 2, a clamping piece 21, a clamping part 3, a seat body 31, a main body 31a, a mounting plate 31b, a connecting rod group 32, a one-way locking structure 33, a locking seat 33a, a barb structure 33b, a hook body structure 34 and a discharge nozzle 4.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.
As shown in fig. 1-10, a portable porta hepatis blocker includes: the guide pipe 1 comprises two channels 11 which are arranged in parallel and are respectively used for supplying a blocking belt to a position to be blocked, and the tail ends of the channels 11 form a semicircular track to change the direction of the blocking belt by 180 degrees; the locking part 2 is arranged in the middle of the discharging ends of the two channels 11; the clamping part 3 comprises a seat body 31, two symmetrically arranged connecting rod groups 32 and a one-way locking structure 33; the connecting rod group 32 is arranged on the seat body 31, one end of the connecting rod group is connected with the force application part, the other end of the connecting rod group clamps the blocking belt under the pulling of the force application part, and the one-way locking structure is used for keeping the clamping action; the seat body 31 is connected with the guide tube 1 through the hook body structure 34, the connection relation is released through the relative motion of the seat body 31 and the guide tube 1 after the clamping action is completed, the blocking belt at the tail end of the channel 11 forms a ring body structure through the motion of the guide tube 1 after the release, the end part of the blocking belt is clamped in the locking part 2 through the clamping part 3 to be closed through the ring body structure, and the size of the ring body structure is adjusted through the control of the feeding end of the channel 11 on the blocking belt.
The invention aims to obtain a ring forming mode which is more convenient and fast to the blocking belt through the structural improvement of the hepatic portal blocking device, the size of the ring structure is convenient to control, and the device can be universally used in laparoscopic and open-type operations only by adaptively changing the structural forms of the guide tube 1 and the clamping part 3 in the application process.
As shown in fig. 8, the circles in the figure represent positions to be blocked; in the working process, the tail end of the channel 11 is firstly sent to a position to be blocked by controlling the guide pipe 1, a surrounding trend is formed on the position to be blocked by the tail end of the semicircular track, and then the blocking belt is conveyed to extend to the outside of the channel 11; the tail end of the blocking belt is clamped through the clamping part 3, and in the process, the clamping effectiveness is ensured through the position relation of the seat body 31 relative to the guide pipe 1; then, the connection relation between the seat body 31 and the guide pipe 1 is released and the guide pipe 1 is driven to move, so that the blocking belt is pulled to be wound on the periphery of the position to be blocked; after the guide tube is pulled to a set position, the position of the guide tube 1 is kept unchanged, and the clamping part 3 is moved, so that the clamping part 3 drives the tail end of the blocking belt to enter the locking part 2, the sealing of a ring body structure is realized, and the phase position relation between the guide tube 1 and the clamping part 3 is required to be kept at the position; finally, the size of the annular structure can be adjusted by pulling the blocking belt, so that the blocking effectiveness is ensured.
In the invention, in order to ensure the blocking effect, two blocking belts are respectively arranged, as shown in fig. 9, one ends of the two blocking belts are arranged at intervals, and the other ends are gathered together through the fixation of the locking part 2, so that a blocking area with a W-shaped projection can be formed, as shown in the figure, the blocking area is increased, the damage to a local blocking position can be reduced, and the blocking form can lead the blocking position to form a bending trend so as to ensure the blocking effect. However, the form of the two blocking belts may have difficulty in the process of clamping the clamping portion 3, and in order to solve the problem, as an optimization of the above embodiment, two discharging nozzles 4 are symmetrically arranged at the ends of the two channels 11, and are respectively used for guiding the two blocking belts to the opposite direction, so that the clamping portion 3 obtains a relatively centralized clamping position, and the clamping reliability is ensured, wherein the external shape of the discharging nozzles 4 is not specifically limited in the present invention, and the purpose of the present invention can be achieved only by changing the internal channel.
As a preferable example of the above embodiment, referring to fig. 5 and 7, the seat body 31 includes a main body 31a and mounting plates 31b extending opposite to both sides of the main body 31a, a middle region of the first link in the linkage 32 is rotatably connected to the mounting plate 31b and located at a side where the blocking belt is clamped, the two first links intersect in an X shape and clamp the blocking belt by a distal end, the other end of the first link is rotatably connected to one end of the second link, and the other ends of the two second links are rotatably connected to the one-way locking structure 33.
When the seat body 31 and the guide tube 1 are fixed at the relative positions, the two first connecting rods can rotate to clamp the blocking belt by changing the positions of the two second connecting rods on the side connected with the one-way locking structure 3, and in the process, the guide tube 1 is required to be ensured to have a relatively stable position. The clamping action can be maintained by the one-way locking structure 3 after the clamping is in place, and then, the clamping action can be effectively realized no matter whether the connection relation between the seat body 31 and the guide pipe 1 is released or not.
It should be noted here that, in the present invention, because a unidirectional locking manner is provided, the clamping cannot be released in the whole operation process, so that when the blocking is released, the blocking belt only needs to obtain one-side freedom through the release of the feeding end, and then the clamping portion 3 and the blocking belt driven by the clamping portion 3 are respectively removed to the outside of the body through the manner of pulling the clamping portion 3.
The end of the mounting plate 31b is of a smooth curved surface structure, so that the damage to a human body in the extension range of the mounting plate is avoided.
At least one opening end is arranged on the guide tube 1 and used for opening a local area of the channel 11, so that on one hand, observation and guidance can be facilitated in the process of introducing the blocking tape, and on the other hand, the disinfection difficulty can be reduced and the disinfection effect can be ensured during disinfection.
Preferably, the guiding tube 1 is partially hollow, an opening is formed on a side wall of the hollow region 12, a convex edge is formed around the opening, the hook structure 34 is disposed on a surface of the seat body 31, which is attached to the guiding tube 1, and the hook structure is hung on the convex edge to realize unidirectional fixation.
In the working process, when the connection of the hook structure 34 is not released, the joint stability of the hook structure and the convex edge can be ensured by pulling the connecting rod group 32, so that the stability of the relative position of the seat body 31 and the guide pipe 1 is ensured. When the clamping is completed, the hook structure 34 can be moved relative to the opening by external operation to release the connection with the seat 31, and the purpose of the connection is to ensure that the clamping portion 3 obtains a stable clamping position during the process of establishing the connection, thereby ensuring the effectiveness of the clamping.
The unidirectional locking structure 33 comprises a locking seat 33a fixedly connected with the main body 31a, and a plurality of barb structures 33b are arranged on the locking seat 33a in parallel; still including fixing two second connecting rod tip and with the two latch segment of rotating and being connected, be provided with the draw-in groove that corresponds with barb structure 33b on the latch segment, the draw-in groove is one-way through barb structure 33b, and cuts to when the reverse. Above-mentioned structure is a comparatively convenient locking mode, can realize stablizing effectual work, and the draw-in groove can obtain different locking dynamics with the cooperation of different barb structures 33 b.
Preferably, the guide tube 1 is provided with an installation groove 13 at the middle position of the end portion, the installation groove 13 has two installation surfaces arranged in parallel, the locking portion 2 includes two symmetrically arranged clamping pieces 21, the end portion of the clamping piece 21 is attached to the installation surface, and the middle portion is a protruding arc-shaped structure. Referring to fig. 10, during the operation, the blocking belt can be squeezed into the arc-shaped structure clamping position between the two clamping pieces 21 through the clamping portion 3 for the purpose of locking, wherein the clamping pieces 21 can be made of metal, and the arc-shaped structure has suitable elasticity.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A portable porta hepatis blocker, comprising:
the guide tube (1) comprises two channels (11) which are arranged in parallel and are respectively used for supplying a blocking belt to a position to be blocked, and the tail ends of the channels (11) form semicircular tracks so as to change the direction of the blocking belt by 180 degrees;
the locking part (2) is arranged in the middle of the discharging ends of the two channels (11);
the clamping part (3) comprises a base body (31), two symmetrically arranged connecting rod groups (32) and a one-way locking structure (33); the connecting rod group (32) is arranged on the base body (31), one end of the connecting rod group is connected with the force application part, the other end of the connecting rod group clamps the blocking belt under the pulling of the force application part, and the one-way locking structure is used for keeping the clamping action; the seat body (31) is connected with the guide pipe (1) through a hook body structure (34), the connection relation is in the clamping action is completed and then the relative motion of the seat body (31) and the guide pipe (1) is removed, the motion of the guide pipe (1) is used for enabling the blocking belt at the tail end of the channel (11) to form a ring body structure, the ring body structure is clamped in the locking part (2) through the clamping part (3) and then is closed, and the size of the ring body structure is adjusted through the control of the blocking belt by the feeding end of the channel (11).
2. Portable porta hepatis blocker according to claim 1, wherein the two exit spouts (4) are symmetrically arranged at the ends of the two channels (11) for guiding the two blocking tapes in opposite directions.
3. The portable porta hepatis blocker according to claim 1, wherein the seat body (31) comprises a main body (31 a) and a mounting plate (31 b) extending opposite to both sides of the main body (31 a), a middle region of a first link in the linkage (32) is rotatably connected to the mounting plate (31 b) and located at one side for clamping the blocking belt, the first links intersect in an X-shape and clamp the blocking belt through the ends, the other end of the first link is rotatably connected to one end of a second link, and the other ends of the second links are rotatably connected to the one-way locking structure (33).
4. The portable porta hepatis blocker according to claim 3, wherein the end of the mounting plate (31 b) is a smooth curved structure.
5. The portable porta hepatis blocker according to claim 1, wherein the guide tube (1) is provided with at least one open end for opening a partial region of the passage (11).
6. The portable porta hepatis blocker according to any one of claims 1 to 4, wherein the guiding tube (1) is partially hollow, an opening is formed in a side wall of the hollow area (12), a convex edge is formed around the opening, the hook body structure (34) is arranged on a surface of the seat body (31) attached to the guiding tube (1), and the hook body structure is hung on the convex edge to realize unidirectional fixation.
7. The portable porta hepatis blocker according to claim 3, wherein the one-way locking structure (33) comprises a locking seat (33 a) fixedly connected with the main body (31 a), and a plurality of barb structures (33b) are arranged on the locking seat (33 a) in parallel;
still include two the second connecting rod tip is fixed and is rotated the latch segment of being connected with the two, be provided with on the latch segment with the draw-in groove that barb structure (33b) correspond, the draw-in groove is one-way to be passed through barb structure (33b), and cut to when reverse.
8. The portable porta hepatis blocker according to claim 1, wherein a mounting groove (13) is formed in the middle of the end of the guide tube (1), the mounting groove (13) has two mounting surfaces arranged in parallel, the locking portion (2) comprises two symmetrically arranged clamping pieces (21), the ends of the clamping pieces (21) are attached to the mounting surfaces, and the middle portion of the clamping pieces is of a protruding arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011097470.6A CN112206028B (en) | 2020-10-14 | 2020-10-14 | Portable hepatic portal blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011097470.6A CN112206028B (en) | 2020-10-14 | 2020-10-14 | Portable hepatic portal blocking device |
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| Publication Number | Publication Date |
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| CN112206028A CN112206028A (en) | 2021-01-12 |
| CN112206028B true CN112206028B (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011097470.6A Active CN112206028B (en) | 2020-10-14 | 2020-10-14 | Portable hepatic portal blocking device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0814707A1 (en) * | 1995-03-07 | 1998-01-07 | YOON, InBae | Needle driving apparatus and methods of suturing tissue |
| DE202007017489U1 (en) * | 2007-12-14 | 2008-04-03 | Urovision Gesellschaft für medizinischen Technologie Transfer mbH | Operating instrument for minimally invasive surgery |
| CN102631227A (en) * | 2012-04-12 | 2012-08-15 | 浙江大学 | Multifunctional blood vessel hook of laparoscope |
| CN111184550A (en) * | 2020-01-10 | 2020-05-22 | 河北医科大学第二医院 | Hepatic portal blocking device |
| CN211534680U (en) * | 2019-12-25 | 2020-09-22 | 常州市第二人民医院 | Loop device for gastrointestinal endoscope |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070088190A1 (en) * | 2005-10-17 | 2007-04-19 | Sidney Appel | Gastric band introducer |
| US20140236194A1 (en) * | 2013-02-15 | 2014-08-21 | Lmk Research, Llc | Spinal dural repair instruments and methods for using same |
-
2020
- 2020-10-14 CN CN202011097470.6A patent/CN112206028B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0814707A1 (en) * | 1995-03-07 | 1998-01-07 | YOON, InBae | Needle driving apparatus and methods of suturing tissue |
| DE202007017489U1 (en) * | 2007-12-14 | 2008-04-03 | Urovision Gesellschaft für medizinischen Technologie Transfer mbH | Operating instrument for minimally invasive surgery |
| CN102631227A (en) * | 2012-04-12 | 2012-08-15 | 浙江大学 | Multifunctional blood vessel hook of laparoscope |
| CN211534680U (en) * | 2019-12-25 | 2020-09-22 | 常州市第二人民医院 | Loop device for gastrointestinal endoscope |
| CN111184550A (en) * | 2020-01-10 | 2020-05-22 | 河北医科大学第二医院 | Hepatic portal blocking device |
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| CN112206028A (en) | 2021-01-12 |
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