CN115738526A

CN115738526A - Filter assembly and filter device externally connected with abdominal cavity puncture outfit

Info

Publication number: CN115738526A
Application number: CN202211386759.9A
Authority: CN
Inventors: 郭燕林; 张伟
Original assignee: Jiangsu Tyco Berman Medical Equipment Co ltd
Current assignee: Jiangsu Tyco Berman Medical Equipment Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-03-07
Anticipated expiration: 2042-11-07
Also published as: CN115738526B

Abstract

The invention relates to the technical field of filtering devices, in particular to a filtering component externally connected with an abdominal cavity puncture outfit and a filtering device, wherein the filtering component externally connected with the abdominal cavity puncture outfit comprises a shell and a plurality of filtering sheet bodies; the filter sheet body edge is provided with the notch, and the notch forms the passageway that can supply operation smog to run through after the filter sheet body is accomplished for the casing installation, and the notch of two adjacent filter sheet bodies sets up in reverse. The invention provides a mode capable of effectively prolonging the circulation time and path of surgical smoke relative to the filter assembly; specifically, through the setting of notch for the circulation of operation smog receives the restriction, consequently forms snakelike circulation route after the notch of two adjacent filter lamellar bodies sets up in reverse, thereby effectual extension circulation time, and at the in-process that the circulation direction frequently changes, operation smog is when striking filter lamellar body, and grease and moisture wherein all can be in the in-process that frequently is blockked and collected by more efficient filtration.

Description

Filter assembly and filter device externally connected with abdominal cavity puncture outfit

Technical Field

The invention relates to the technical field of filtering devices, in particular to a filtering assembly externally connected with an abdominal cavity puncture outfit and a filtering device.

Background

Surgical smoke is a hazardous by-product generated by the burning of blood vessels and the destruction of tissue, etc., based on intraoperative energy devices, including bacteria and viruses, and the creation of artificial pneumoperitoneum increases the risk of operator contact with such bacteria and viruses.

Present abdominal cavity puncture ware adopts filter equipment to solve above-mentioned problem, and the filtering process specifically includes:

filtering aerosol particles with the size of more than 0.3um by using a filter medium, and liquefying and storing water vapor by using a fluid collector; in the process of collecting the water vapor, the filtered surgical smoke is buffered by the cavity to realize the natural condensation of liquid in the cavity, but the circulation distance and the circulation time of the filtered surgical smoke in the cavity are limited, so that the situation of insufficient filtration is inevitable.

Disclosure of Invention

The invention provides a filtering component and a filtering device externally connected with an abdominal cavity puncture outfit, which effectively solve the problems pointed out in the background technology.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the filtering component is externally connected with the abdominal cavity puncture outfit and comprises a shell and a plurality of filtering sheet bodies which are arranged inside the shell in parallel, and the parallel direction of the filtering sheet bodies is parallel to the length direction of the shell;

the filter plate is characterized in that notches are formed in the edges of the filter plate bodies, after the filter plate bodies are installed relative to the shell, a channel through which surgical smoke can penetrate is formed, and the notches of the two adjacent filter plate bodies are arranged in the opposite direction.

Further, each filter sheet is connected as a unitary structure that is mounted relative to the housing.

Further, each filter sheet is independently mounted relative to the housing.

Furthermore, the shell comprises at least two parts, and the inner wall of the shell is provided with an installation groove for at least partially inserting the filter sheet body, and the installation groove fixes the filter sheet body;

at least two portions of the housing include an open position in which the filter sheet is mounted and a closed, assembled, use position.

Further, still include liquid collection unit, liquid collection unit has the collection space, the collection space with the casing is inside through check valve body UNICOM.

Further, the casing inner wall just is located the position between the two adjacent filter lamellar bodies and sets up the recess, the recess lateral wall is provided with the breach, the breach supplies each recess UNICOM is in order to form the circulation route, check valve set up in the circulation route.

Further, the flow regulating device comprises an inner pipe body, an outer pipe body and a regulating sheet;

the outer pipe body is fit and sleeved outside the inner pipe body, and the outer pipe body is used for mounting each filter sheet body;

the outer pipe body is provided with moving grooves on one side of the filter sheet body in one-to-one correspondence with the filter sheet body, and the inner pipe body is provided with jacks in the coverage range of the moving grooves;

the adjusting sheet is attached to the filter sheet body and comprises a main body, an arc-shaped deformation body and a convex block;

the arc deformation body has elasticity, the radian range is larger than 1/2 of the circumference, and one end of the arc deformation body is connected with the main body;

the main body is used for changing the flow cross section of the channel through different coverage areas of the notches, the arc-shaped deformation body is sleeved on the periphery of the outer pipe body through self deformation and extrudes the side wall of the outer pipe body through elastic resetting force, and the lug is arranged at the other end of the arc-shaped deformation body and is embedded into the jack;

the inner tube body drives the main body to rotate through the matching of the jack and the lug, and the moving groove guides the lug.

The filtering device externally connected with the abdominal cavity puncture outfit comprises the filtering component; and the cover body structure is positioned at least one end of the filtering component and is used for sealing the inner space of the shell, wherein an auxiliary filtering unit is arranged between the cover body structure and the filtering component.

Further, the auxiliary filter unit comprises a plurality of layered structures, and the layered structures comprise at least one of melt-blown cloth, a sintered polyethylene plate body or an activated carbon plate body.

Further, the auxiliary filter unit comprises a particulate filter material that is confined and concentrated.

Through the technical scheme of the invention, the following technical effects can be realized:

the invention provides a mode capable of effectively prolonging the circulation time and path of surgical smoke relative to the filter assembly; specifically, through the setting of notch for the circulation of operation smog receives the restriction, consequently forms snakelike circulation route after the notch of two adjacent filter lamellar bodies sets up in reverse, thereby effectual extension circulation time, and at the in-process that the circulation direction frequently changes, operation smog is when striking filter lamellar body, and grease and moisture wherein all can be in the in-process that frequently is blockked and collected by more efficient filtration.

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 embodiments or the description of 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 it is also possible for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a schematic view of a plurality of filter sheets;

FIG. 2 is a schematic view of surgical smoke circulating between two adjacent filter sheets;

FIG. 3 is a schematic view of the mounting of the filter sheet bodies as a whole relative to the housing;

FIG. 4 is a schematic view of filter elements connected together by a shaft;

FIGS. 5 (A) - (C) are schematic views of three cases with different cross-sectional shapes;

FIGS. 6 (A) - (C) are schematic views of notches in three different shapes;

FIG. 7 is a schematic view of each filter panel independently mounted relative to the housing;

FIG. 8 is a schematic view of the location of the grooves;

FIG. 9 is a schematic view of one arrangement of a liquid collection unit;

FIG. 10 is a schematic view of another arrangement of the liquid collection unit;

FIG. 11 is a schematic view of a third arrangement of liquid collection units;

FIG. 12 is a schematic view showing the arrangement of the grooves, notches and the mounting positions of the check valve body on the housing;

FIG. 13 is a schematic view of the flow control device;

FIG. 14 is a cross-sectional view of a flow regulating device;

FIG. 15 is a schematic view of the adjustment tab;

FIG. 16 is a schematic view of the installation of the tab relative to the inner tube;

FIG. 17 is an exploded view of the auxiliary filter unit and the housing in a layered configuration;

reference numerals:

1. a housing; 11. a groove; 12. a notch; 2. a filter sheet body; 21. a notch; 3. a channel; 4. a shaft body; 5. a liquid collection unit; 6. a collection space; 7. mounting position; 8. a flow regulating device; 81. an inner tube body; 82. an outer tube body; 82a, a moving slot; 83. a regulating sheet; 83a, a main body; 83b, arc-shaped deformation; 83c, a bump; 9. an auxiliary filter unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the filtering assembly externally connected to the abdominal cavity puncture outfit comprises a housing 1 and a plurality of filter sheets 2 arranged in parallel inside the housing 1, wherein the parallel direction of the filter sheets 2 is parallel to the length direction of the housing 1; the 2 edges of filter lamellar body are provided with notch 21, and notch 21 forms the passageway 3 that can supply operation smog to run through after filter lamellar body 2 accomplishes for casing 1 installation, and the reverse setting of notch 21 of two adjacent filter lamellar bodies 2.

The invention provides a mode capable of effectively prolonging the circulation time and the circulation path of the surgical smoke relative to the filter assembly; specifically, through the setting of notch 21 for the circulation of operation smog is restricted, consequently after notch 21 of adjacent two filter plate body 2 sets up in opposite directions, as shown in fig. 2, forms snakelike circulation route, thereby effectual extension circulation time, in the frequent change's of circulation direction in-process of operation smog when striking filter plate body 2, grease and moisture in it all can be in the in-process that frequently is blockked and by more efficient collection.

Among other things, for the choice of filter leaf 2, it is ensured that it has sufficient rigidity to ensure stability of the shape during the impact of the air flow, so that the available flow conditions of the slot 21 are stable.

As a preference of the above embodiment, as shown in fig. 3 and 4, in order to facilitate the installation of the respective filter bodies 2, the respective filter bodies 2 are connected as a unitary structure, which is installed with respect to the housing 1. In this manner, each filter sheet body 2 can be preassembled firstly by means of other structures, which is more conventional in the case of an axial structure, i.e. each filter sheet body 2 is fixed by means of the same shaft body 4, and for the fixing of the shaft body 4, the filter sheets can be supported and fixed by means of the covers or other structures located at the two ends of the housing 1.

In the above embodiment, the cross section of the housing 1 may be selected to be cylindrical, as shown in fig. 5 (a); however, for the purpose of stable placement, a flat surface may be provided on the outer wall of the cylindrical body portion, so that the entire housing 1 can be stably supported when placed with respect to the supporting plane, as shown in fig. 5 (B); further alternatively, the polygonal sectional shape may be directly selected as shown in fig. 5 (C), so that the entire housing 1 can be effectively supported by any one plane.

During the machining of the filter sheet body 2, the shape of the notches 21 can be selected from a V-shape, as shown in fig. 6 (a), or the shape of the notches 21 can also be a U-shape, as shown in fig. 6 (B); alternatively, as shown in fig. 6 (C), the shape of the notch 21 is any regular shape for the circulation of surgical smoke, such as C-shape; alternatively, irregular shapes that effectively allow for the circulation of surgical smoke are also within the scope of the present invention.

In addition to the above-described integral mounting, as another embodiment, as shown in fig. 7, each filter sheet body 2 is independently mounted with respect to the housing 1, and in this way, the number of parts to be used can be reduced.

In this embodiment, the housing 1 includes at least two parts, and the inner wall of the housing 1 is provided with an installation groove into which at least a part of the filter sheet body 2 is inserted, and the installation groove fixes the filter sheet body 2; at least two portions of the housing 1 include an open position in which the filter sheet body 2 is mounted, and a closed, assembled, use position.

The above embodiment provides a specific solution for mounting the filter sheet body 2: the structure for fixing the filter sheet body 2 is an installation groove positioned on the inner part of the shell 1, and referring to fig. 7, the filter sheet body 2 can be fixed in the axial direction and the radial direction only by inserting the filter sheet body 2 into the installation groove partially or completely; when the mounting groove is a complete ring groove, the edge of the filter sheet body 2 is preferably completely mounted in the mounting groove; when the mounting grooves only occupy part of the annular range in the shell 1, the edge of the filter sheet body 2 can be provided with local convex parts to be mounted in the corresponding mounting grooves, and the mode is a mode capable of effectively preventing the filter sheet body 2 from rotating; when the filter plate body 2 is fully wrapped around its edge, it is preferably mounted by interference fit so as to avoid its rotation.

Of course, the sealing at other positions than the channel 3 can be achieved by controlling the material and size of the filter sheet body 2 in the above-described embodiments. The at least two parts of the housing 1 may be connected by any means, such as a connector connection, or a snap-fit connection, etc. The parts of the housing may be completely separated in the open state, as shown in fig. 8; the two parts can be rotatably connected through structures such as a rotating shaft and the like so as to be opened; it is sufficient that the opening between the at least two parts is sufficient to allow the filter plate body 2 to be mounted.

Preferably, the liquid collecting device further comprises a liquid collecting unit 5, wherein the liquid collecting unit 5 is provided with a collecting space 6, and the collecting space 6 is communicated with the inside of the shell 1 through a one-way valve body. As shown in fig. 9, the liquid collecting unit 5 may be disposed at one side of the housing 1 in the longitudinal direction, in which case it is preferable that the entire filter assembly is used while maintaining the longitudinal direction in the longitudinal direction, so that the collected liquid, grease, etc. are collected down into the liquid collecting unit 5 through the passage 3 formed by the notches 21; the check valve body can be selected from existing products.

Or as another embodiment, the liquid collection unit 5 may be disposed at the periphery of the housing 1, thereby forming the collection space 6 by means of the outer wall of the housing 1; in this way, as shown in fig. 10, the collecting space 6 may be annular, in which way the position of the one-way valve body needs to be selectively installed to ensure the smooth collection of the liquid; in order to reduce the number of installation thereof and achieve effective liquid collection, it is preferable to dispose it on the side where the filter assembly can be horizontally placed so as to perform collection by a free fall manner, as shown in fig. 11, and the structure for allowing the filter assembly to be horizontally placed can be achieved by designing the shape of the liquid collection unit 5 so as to achieve both easy placement and liquid collection.

As a preferred example of the above embodiment, in order to reduce the influence of the liquid and grease on the smoke flow after being properly collected, as shown in fig. 7, 8 and 12, a groove 11 is provided on the inner wall of the casing 1 at a position between two adjacent filter sheets 2, a notch 12 is provided on the side wall of the groove 11, the notches 12 are communicated with each groove 11 to form a flow path, and a check valve is provided in the flow path.

Through the optimization of the above structure, after placing the liquid collection unit 5 downwards in the process of using the filter assembly, the liquid will be collected into the groove 11 first, and concentrated collection will be formed through the flow path, wherein the accommodation of the groove 11 for liquid and grease will affect the influence of the two on the smoke flow to a lower degree, the mounting position 7 of the check valve body is given in fig. 12, which position can also be provided in plurality, thereby ensuring the rapid flow of liquid. The side wall of the groove 11 can be only attached to the filter sheet body 2, or a mounting groove is formed for mounting the filter sheet body 2.

The output of surgical fumes may be fluctuating due to the different surgical procedures, in which case the passage 3 formed by the slots 21 has a need for flow area regulation; further alternatively, in order to enable the surgical smoke to form a variable speed circulation mode in the housing 1, so as to form a larger impact force with the filter sheet body 2, thereby improving the efficiency of collecting grease, liquid and the like blocked by the filter sheet body 2, as a preferable mode, the surgical smoke further comprises a flow regulating device 8, wherein the flow regulating device 8 comprises an inner pipe body 81, an outer pipe body 82 and a regulating sheet 83; the outer tube 82 is fit and sleeved outside the inner tube 81, and each filter sheet body 2 is installed; the outer tube 82 is provided with moving grooves 82a at one side of the filter sheet body 2 corresponding to the filter sheet body 2 one by one, and the inner tube 81 is provided with jacks in the coverage of the moving grooves 82 a; the adjusting sheet 83 is attached to the filter sheet body 2 and comprises a main body 83a, an arc-shaped body 83b and a lug 83c; the arc-shaped deformation body 83b has elasticity and an arc range larger than 1/2 of a circumference, and one end is connected with the main body 83 a.

The main body 83a is used for changing the flow cross section of the channel 3 through different coverage areas of the notches 21, the arc-shaped deformation body 83b is sleeved on the periphery of the outer pipe body 82 through self deformation and realizes extrusion on the side wall of the outer pipe body 82 through elastic resetting force, and the lug 83c is arranged at the other end of the arc-shaped deformation body 83b and is embedded in the jack; the inner tube 81 drives the main body 83a to rotate through the matching of the insertion hole and the projection 83c, and the moving groove 82a guides the projection 83 c.

As shown in fig. 13 to 16, in the preferred embodiment, a flow regulating device 8 is provided, which is convenient to assemble, does not need an additional connecting member, and can conveniently realize the regulation of the flow cross section of the channel 3; during installation, the filter sheet body 2 can be first fixed relative to the outer tube 82, and then the inner tube 81 can be inserted into the outer tube 82, with the insertion in place being determined by whether the moving grooves 82a correspond to the insertion holes. After the work is finished, the adjusting piece 83 is installed, the shape of the arc-shaped deformation body 83b is changed to enable the adjusting piece to be sleeved outside the outer tube body 82, the position of the lug 83c corresponds to that of the jack, the lug 83c can be enabled to enter the jack after the arc-shaped deformation body 83b is reset, and the arc-shaped deformation body 83b is naturally fixed by attaching, coating and extruding the outer tube body 82; by fixing the outer tube 82 and rotating the inner tube 81, the adjustment of the flow cross section can be realized by effectively and synchronously driving the adjustment sheets 83 to rotate; because the mass of the adjusting sheet 83 is light, the way that the jack drives the projection 83c to move is enough to change the rotation angle; in the adjusting process, the arrangement of the moving groove 82a can ensure the stability of rotation, and the tightness can be naturally realized due to the joint of the adjusting sheet 83 and the filter sheet body 2; in the above embodiment, the fixing support for the outer tube can be realized by the cover structure installed relative to the housing 1, and the power for driving the inner tube 81 to rotate can be manual or automatic, and of course, it is preferable to externally set a scale form for identifying the rotation angle.

After the operation smoke enters from one end of the length direction of the shell 1, the flowing section can be reduced when the entering amount of the operation smoke is reduced; alternatively, the flow cross-section can be adjusted with a constant flow rate, in which case, in the case of a steady inflow of surgical smoke, a locally high flow rate is obtained due to the throttling effect when passing through the channel 3, so that the speed at which it strikes the next filter plate 2 increases, which is more advantageous for the separation of grease and liquids, etc.

A filter device externally connected with an abdominal cavity puncture outfit comprises the filter component; and a cover structure located at least one end of the filter assembly and used for sealing the inner space of the shell 1, wherein an auxiliary filter unit 9 is arranged between the cover structure and the filter assembly. The position of the cover structure is related to the structural form of the housing 1, and when one end of the cover structure has an opening, the cover structure needs to be used at one end of the housing 1; and when its both ends all had uncovered, then all set up lid structure at both ends to make filter equipment obtain complete product form, and supplementary filter unit 9's setting makes above-mentioned filtering component can't realize filtering or be difficult to the filterable material of complete by further filtration.

As a preference of the above embodiment, the auxiliary filter unit 9 includes a plurality of layered structures, and the layered structures include at least one of a meltblown fabric, a sintered polyethylene plate body, or an activated carbon plate body.

As shown in fig. 17, a form is shown in which filter layers are provided at both the front and rear ends of the housing 1, wherein, in the selection of the materials of the respective stages, since the liquid in the surgical smoke is not filtered at the front end of the housing 1, it is not recommended to use a filter material such as meltblown which is deteriorated by being soaked with the liquid; the filter material is more suitable for further filtering smoke after being filtered by liquid, grease and the like.

In the above embodiment, the filter units of the layered structure are protected, and in the installation process, each layered structure may be first installed on the housing 1 or the cover structure; still alternatively, the fixing is achieved by pressing of both independently of the other.

As an alternative to the auxiliary filtering unit 9, the auxiliary filtering unit 9 comprises a limited and concentrated granular filtering material, such as activated carbon granules, etc., wherein the structure for limiting said material can be located on the cover structure, such as the cavity and the corresponding internal net, or can be a limiting structure independent from the housing 1 or the cover structure, it is emphasized that the structure is required to allow the passage of surgical fumes, and the structure can be mounted only by the cover structure and/or the housing 1.

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

1. The filtering component is externally connected with the abdominal cavity puncture outfit and is characterized by comprising a shell and a plurality of filtering sheet bodies which are arranged inside the shell in parallel, wherein the parallel direction of the filtering sheet bodies is parallel to the length direction of the shell;

2. The filter assembly of claim 1 wherein the filter blades are connected as a unitary structure that is mounted relative to the housing.

3. The filter assembly external to a laparoscopic puncture instrument of claim 1, wherein each of said filter sheets is independently mounted with respect to said housing.

4. The external connection abdominal cavity puncture outfit filter assembly according to claim 3, wherein the housing comprises at least two parts, and the inner wall of the housing is provided with a mounting groove for at least partially inserting the filter sheet, and the mounting groove fixes the filter sheet;

at least two portions of the housing include an open position for installation of the filter sheet and a sealed, assembled, use position.

5. The filter assembly externally connected to an abdominal cavity puncture outfit according to any one of claims 1 to 4, further comprising a liquid collecting unit, wherein the liquid collecting unit is provided with a collecting space, and the collecting space is communicated with the interior of the shell through a one-way valve body.

6. The external filtering assembly of claim 5, wherein a groove is formed on the inner wall of the housing at a position between two adjacent filter sheets, a gap is formed on a side wall of the groove, the gap is used for communicating the grooves to form a flow path, and the check valve is disposed in the flow path.

7. The filter assembly externally connected to an abdominal cavity puncture outfit according to any one of claims 1 to 4, further comprising a flow regulating device, wherein the flow regulating device comprises an inner tube body, an outer tube body and a regulating sheet;

the arc-shaped deformation body has elasticity, the radian range is larger than 1/2 of the circumference, and one end of the arc-shaped deformation body is connected with the main body;

8. A filter assembly circumscribing a laparoscopic puncture instrument, comprising the filter assembly of claim 1; and the cover body structure is positioned at least one end of the filtering component and is used for sealing the inner space of the shell, wherein an auxiliary filtering unit is arranged between the cover body structure and the filtering component.

9. The filter device external to the laparoscopic puncture outfit of claim 8, wherein said auxiliary filter unit comprises a plurality of layered structures, said layered structures comprising at least one of a melt-blown fabric, a sintered polyethylene plate, or an activated carbon plate.

10. The laparoscopic filter device of claim 8, wherein said auxiliary filter unit comprises a restricted and concentrated granular filter material.