CN111938831A - Endoscope clamp channel sealing element - Google Patents
Endoscope clamp channel sealing element Download PDFInfo
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- CN111938831A CN111938831A CN201910412559.8A CN201910412559A CN111938831A CN 111938831 A CN111938831 A CN 111938831A CN 201910412559 A CN201910412559 A CN 201910412559A CN 111938831 A CN111938831 A CN 111938831A
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- 238000007789 sealing Methods 0.000 title claims abstract description 50
- 238000011282 treatment Methods 0.000 claims abstract description 49
- 230000007704 transition Effects 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 9
- 230000001965 increasing effect Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims 3
- 238000010276 construction Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 abstract description 15
- 239000010410 layer Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000001356 surgical procedure Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000001861 endoscopic biopsy Methods 0.000 description 1
- 238000012277 endoscopic treatment Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/0034—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means adapted to be inserted through a working channel of an endoscope
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- Surgery (AREA)
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- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
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- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Oral & Maxillofacial Surgery (AREA)
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- Radiology & Medical Imaging (AREA)
- Endoscopes (AREA)
- Surgical Instruments (AREA)
Abstract
The present application provides an endoscope forceps channel seal comprising: the valve comprises a valve body, a first one-way valve and an elastic annular belt. Wherein, first check valve sets up inside the valve body, connects the valve body inner wall through the elasticity clitellum. The elastic ring belt is thin and soft, so that the deformation degree of the elastic ring belt is greater than that of the first one-way valve, and the first one-way valve can swing in the valve body. When the treatment device moves, the first one-way valve can swing correspondingly along with the treatment device, so that the first one-way valve can always tightly wrap the treatment device, the sealing performance of the endoscope clamping channel is improved, gaps are prevented from being generated, liquid backflow is prevented, and the problem that the gaps are easily generated in the operation of a traditional sealing element, and the liquid backflow is caused is solved.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to an endoscope clamp channel sealing element.
Background
The endoscope is an optical instrument commonly used in minimally invasive surgery and comprises a hard endoscope and a soft endoscope. Among them, in a flexible endoscope apparatus, a tube through which an instrument such as a forceps passes is provided, and the tube is called a forceps channel of an endoscope. When an endoscope is used for clinical operation, liquid such as body fluid, liquid medicine and the like in a body cavity can flow back along a forceps channel pipeline of the endoscope, enter the forceps channel pipeline and even overflow from an upper opening of the endoscope, so that operation is affected. The returned fluid may also adhere to the endoscopic instrument and be carried away, easily inducing infection risk. Therefore, to reduce fluid backflow, a seal is typically provided at the upper opening of the endoscopic forceps channel to block fluid backflow or spillage.
The traditional jaw seal usually adopts a single-layer or double-layer structure, namely, a multi-layer one-way valve is arranged to enhance the sealing effect. As shown in fig. 1, the existing endoscope biopsy valve includes a valve body a1, and a check valve a2 disposed inside the valve body a1, a flip cover a3 is connected to the outer surface of the valve body a1 through a connecting belt a4, and another check valve is disposed on the flip cover a 3. The two one-way valves are provided with coaxial openings, and in the operation process, treatment instruments such as surgical forceps and the like enter an operation area through the small holes on the two one-way valves to complete operation.
However, during the surgical procedure, the operator often needs to constantly adjust the position of the treatment instrument to meet the surgical action requirements. Because the sealing element is mostly made of soft elastic plastics, when the position of the treatment device is adjusted, the treatment device can extrude the one-way valve, so that deformation is generated. Therefore, a gap is easily formed on the non-pressure side of the check valve, so that the sealing member and the endoscope treatment instrument cannot be tightly wrapped, the backflow of liquid is difficult to completely block, and the liquid in the body easily seeps out from the seam of the check valve, so that the operation cannot be safely and reliably completed.
Disclosure of Invention
The application provides an endoscope clamp channel sealing element to solve traditional sealing element and in the operation, produce the gap easily, lead to the problem of liquid backward flow.
The application provides an endoscope pincers way sealing member includes: the valve body is matched and connected with an opening of an endoscope clamping channel; a first one-way valve for passage of a treatment instrument; the elastic annular belt is used for connecting the first one-way valve and the valve body; wherein the first one-way valve is disposed within the valve body; the elastic ring belt is of a soft annular structure sleeved on the outer wall of the first one-way valve; the outer circumference of the elastic ring belt is connected with the inner wall of the valve body; the flexible degree of elasticity clitellum is greater than the flexible degree of first check valve to make first check valve can swing in the valve body.
Optionally, the thickness of the elastic annular band is gradually reduced in a direction of transition from the inner wall of the valve body to the first one-way valve, so as to reduce the swing resistance of the first one-way valve.
Optionally, the thickness of the elastic annular band gradually increases in a direction of transition from the inner wall of the valve body to the first check valve, so as to reduce the swing resistance of the first check valve.
Optionally, in a direction of transition from the inner wall of the valve body to the first check valve, the thickness of the elastic annular band is gradually reduced and then gradually increased, so as to reduce the swing resistance of the first check valve.
Optionally, the first one-way valve has a valve body structure with two or more layers;
the middle part of the first one-way valve is provided with a buffer cavity, and two ends of the buffer cavity are provided with coaxial through holes so as to tightly wrap the treatment instrument.
Optionally, the jaw sealing element further comprises a soft top cover and a connecting belt, and the top cover is used for enhancing the sealing effect; the top cover is connected with the outer wall of the valve body through the connecting belt.
Optionally, the side wall of the top cover is provided with an annular protrusion, the inner wall of the valve body is provided with a groove, and the top cover covers the valve body through the matching of the protrusion and the groove.
Optionally, a second one-way valve is arranged on the top cover; the second one-way valve is coaxial with the first one-way valve, and a gap is formed in the middle of the second one-way valve so that the top cover can tightly wrap the treatment instrument when covering the valve body.
Optionally, concave holes are formed in the middle of the two end faces of the top cover; the concave holes are formed in two sides of the second one-way valve, so that the thickness of the second one-way valve is reduced.
Optionally, the valve body is a cylindrical or truncated cone-shaped structure with a hollow cavity; the first one-way valve is of a circular truncated cone-shaped structure, and the thickness of the first one-way valve is larger than that of the thinnest position of the elastic annular band.
Optionally, the valve body, the first check valve and the elastic annular band are of an integrated structure.
The present application further provides an endoscope forceps channel seal, comprising: the valve body is matched and connected with an opening of an endoscope clamping channel; a first one-way valve for passage of a treatment instrument; wherein the first one-way valve is disposed within the valve body; first check valve is two-layer or two-layer more than valve body structure to make first check valve's yielding degree is less than first check valve with the yielding degree of valve body junction.
The present application provides an endoscope forceps channel seal comprising: the valve comprises a valve body, a first one-way valve and an elastic annular belt. Wherein, first check valve sets up inside the valve body, connects the valve body inner wall through the elasticity clitellum. The elastic ring belt is thin and soft, so that the deformation degree of the elastic ring belt is greater than that of the first one-way valve, and the first one-way valve can swing in the valve body. When the treatment device moves, the first one-way valve can swing correspondingly along with the treatment device, so that the first one-way valve can always tightly wrap the treatment device, the sealing performance of the endoscope clamping channel is improved, gaps are prevented from being generated, liquid backflow is prevented, and the problem that the gaps are easily generated in the operation of a traditional sealing element, and the liquid backflow is caused is solved.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art endoscopic biopsy valve;
FIG. 2 is a schematic cross-sectional view of an endoscopic jaw seal of the present application;
FIG. 3 is a schematic structural view of an endoscope channel sealing element of the present application in an uncovered state;
FIG. 4 is a front view of an endoscopic jaw seal according to the present application;
FIG. 5 is a schematic top view of an endoscopic jaw seal of the present application;
FIG. 6 is a schematic illustration of a portion of a first elastic cuff shown in the present application;
FIG. 7 is a schematic illustration of a portion of a second elastic cuff shown in the present application;
FIG. 8 is a schematic view of a portion of a third elastic zone shown in the present application.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.
In the technical scheme provided by the application, the sealing piece is applied to be matched with an endoscope for use. The endoscope is an optical instrument and generally comprises a cold light source lens, a fiber optic line, an image transmission system, a screen display system and the like. Endoscopes can be used to directly view cavities inside the human body and inside organs, inside which guide tubes are provided for the treatment of instruments by surgery. The surgical treatment instrument typically comprises a forceps or the like, and the guide tube is therefore also referred to as a forceps channel.
The end of the forceps channel of the endoscope is a forceps channel opening or a luer, as shown in fig. 2, the opening of the forceps channel 6 can be formed by an annular groove arranged on the outer wall of the endoscope channel, and the forceps channel sealing element is used as an accessory of the endoscope and is provided with an annular convex structure matched with the annular groove. In clinic, if the sealing piece is needed, the forceps channel sealing piece can be directly covered at the opening of the forceps channel 6 of the endoscope, so that the annular bulge enters the annular groove to complete the fixation of the sealing piece.
Obviously, the connection mode of the sealing element and the endoscope is not limited to the above one, and in practical application, various other detachable connection modes can be selected. For example, a connection mode in which a projection is provided on an endoscope and a groove is provided on the sealing member; threaded connections, and the like.
The present application provides an endoscopic jaw seal comprising: valve body 1, first check valve 2 and elastic ring belt 3. The valve body 1 is matched and connected with an opening of a clamping channel of an endoscope, so that the whole sealing element of the clamping channel is arranged on the endoscope through the valve body 1 and a matching part on the wall of the endoscope.
In order to adapt to the shape of the endoscope, as shown in fig. 4 and 5, the valve body 1 is a cylindrical or truncated cone-shaped structure with a hollow cavity. In the technical scheme that this application provided, valve body 1 can adopt soft material to make, for example: silica gel, soft plastic etc to guarantee that valve body 1 can wholly appear warping when the application of force to the processing apparatus, and can not drop from the endoscope easily, the reinforcing the sealed effect of sealing member when using.
A first one-way valve 2 is arranged in the inner cavity of the valve body 1. The first one-way valve 2 is used for passing through a treatment instrument. In the present application, as shown in fig. 2 and 3, the first check valve 2 may be configured to have a truncated cone shape, so as to prevent the liquid from flowing back through the truncated cone shape. In order to obtain more operating space, the first one-way valve 2 in the shape of a truncated cone should be arranged at the central axis of the inner cavity of the valve body 1, i.e. the first one-way valve 2 is arranged coaxially with the valve body 1.
Further, the first check valve 2 is of a valve body structure with two or more layers, that is, a buffer cavity 21 can be arranged in the middle of the first check valve 2, and coaxial through holes are respectively arranged at two ends of the buffer cavity 21 so as to tightly wrap the treatment instrument. As shown in fig. 2, the buffer cavity 21 is disposed in the middle of the first one-way valve 2, on one hand, both ends of the buffer cavity 21 can be coated with the treatment device, that is, the liquid in the gap is blocked twice, so as to prevent the liquid from overflowing. On the other hand, because set up buffer cavity 21, can form the entity of circular arc transition in the middle part of first check valve 2, this kind of circular arc transition can make first check valve 2 be more difficult to produce the deformation, further reduces the yielding degree of first check valve 2.
Accordingly, there is also provided in the present application an endoscopic jaw seal comprising: the valve body 1 is matched and connected with an opening of an endoscope clamping channel 6; a first one-way valve 2 for passing through the treatment instrument; wherein the first one-way valve 2 is arranged in the valve body 1; first check valve 2 is two-layer or two-layer more than valve body structure to make first check valve 2 yielding degree is less than first check valve 2 with the yielding degree of valve body 1 junction. That is, in this sealing member, the elastic ring band 3 may not be included, the first check valve having a two-layer or more valve structure is directly used to obtain the sealing effect, but in order to maintain the flexibility during the swing, the degree of easy deformation of the first check valve 2 is smaller than the degree of easy deformation of the connecting portion between the first check valve 2 and the valve body 1.
The first one-way valve 2 is connected to the inner wall of the valve body 1 by an elastic annular band 3. As shown in fig. 2 and fig. 3, the elastic ring belt 3 is a soft annular structure sleeved on the outer wall of the first check valve 2, that is, the inner circumference of the elastic ring belt 3 is connected with the first check valve 2, so that the first check valve 2 is located at the center of the inner cavity of the valve body 1. The outer circumference of the elastic ring belt 3 is connected with the inner wall of the valve body 1.
In order to maintain good sealing performance of the sealing element under the action of a treatment instrument when performing a surgery, the elastic ring belt 3 is made to be more easily deformed than the first one-way valve 2 by the limitation of material and/or structure, so that the first one-way valve 2 can swing in the valve body 1.
In the technical solution provided in the present application, the degree of easy deformation refers to the ease with which the elastic band 3 and the first check valve 2 deform under the action of the operation of the treatment instrument when the treatment instrument passes through the first check valve 2. That is, the present application provides a solution in which the elastic band 3 is more easily deformed relative to the first check valve 2 by the force of the treatment instrument.
In the technical scheme provided by the application, the elastic ring belt 3 is easier to deform relative to the first one-way valve 2, so that in the process of performing the operation, as long as the action amplitude and the force of the treatment instrument are within the range corresponding to the normal operation action, the elastic ring belt 3 can deform to adapt to the action of the treatment instrument before the first one-way valve 2. Therefore, the first one-way valve 2 can not deform or has small deformation, namely, the first one-way valve 2 always keeps the original shape and tightly wraps the treatment instrument, so that a gap between the treatment instrument and the first one-way valve 2 is avoided, and the sealing performance of the jaw sealing element is improved.
In practical application, the flexible degree of the elastic ring belt 3 is greater than that of the first one-way valve 2 from two aspects of structure and material. On one hand, the elastic ring belt 3 can be made of the same material as the valve body 1, but the elastic ring belt 3 is thin and soft in structure, namely the thickness of the elastic ring belt 3 is as thin as possible on the premise that the connection strength can be ensured. On the other hand, the elastic ring belt 3 may be made of a material having a hardness lower than that of the valve body 1, for example, the valve body 1 is made of an elastic rubber having a higher hardness, and the elastic ring belt 3 is made of a silicone rubber having a lower hardness.
Note that the valve body 1, the first check valve 2, and the elastic ring band 3 are small in size. Moreover, the elastic ring band 3 should not be made of a material different from that of the first check valve 2 in order to have a relatively stable connection relationship and sealing performance and in consideration of process complexity and other factors.
Therefore, in some embodiments of the present application, the valve body 1, the first check valve 2, and the elastic ring belt 3 are made of the same material, and the valve body 1, the first check valve 2, and the elastic ring belt 3 are of an integrated structure. In this embodiment, the valve body 1, the first check valve 2 and the elastic annular band 3 made of the same material and having the integrated structure are convenient to produce and manufacture, and the integrated structure is also beneficial to fixing the sealing element on the endoscope and keeping the whole sealing performance.
Specifically, in the present application, the feature that the elastic ring band 3 is more easily deformed than the first check valve 2 can be realized by the following three embodiments:
in one embodiment of the present application, as shown in fig. 2, 3, and 6, the elastic annular band 3 has a thickness gradually decreasing in a direction of transition from the inner wall of the valve body 1 to the first check valve 2 to reduce the swing resistance of the first check valve 2. In the present embodiment, the elastic ring band 3 is more easily deformed with respect to the first check valve 2 by gradually reducing the thickness of the elastic ring band 3. And the thickness decreases in the direction from the inner wall of the valve body 1 to the first one-way valve 2, i.e. the thickness of the elastic ring band 3 is thicker near the outer circumference and thinner near the inner circumference. The structure can thicken the connecting position of the elastic ring belt 3 and the inner cavity of the valve body 1 and increase the firmness.
Meanwhile, the elastic ring belt 3 is closer to the first one-way valve 2, so that the first one-way valve 2 can be ensured to swing in the valve body 1 more easily, and the structure of the elastic ring belt 3 shown in the embodiment is more suitable for a sealing element with a larger first one-way valve 2 or a sealing element used when the action range of a treatment instrument is larger in an operation.
In one embodiment of the present application, as shown in fig. 7, the elastic annular band 3 gradually increases in thickness in a direction of transition from the inner wall of the valve body 1 to the first check valve 2 to reduce the swing resistance of the first check valve 2. In this embodiment, the thickness of the elastic annular band 3 increases in the direction from the inner wall of the valve body 1 toward the first check valve 2, that is, the thickness of the elastic annular band 3 near the inner circumference is thick. Such a structure makes it possible to thicken the position where the elastic band 3 is connected to the first check valve 2. Under the prerequisite of guaranteeing the swing flexibility, make first check valve 2 be more difficult to produce the deformation, supplementary yielding degree that reduces first check valve 2. It can be seen that the elastic annular band 3 structure shown in the present embodiment is more suitable for the smaller sealing member of the first check valve 2.
In one embodiment of the present application, as shown in fig. 8, the elastic annular band 3 has a thickness gradually decreasing and then gradually increasing in a direction of transition from the inner wall of the valve body 1 to the first check valve 2, so as to reduce the swing resistance of the first check valve 2. In this embodiment, the elastic ring band 3 has thicker two sides and thinner middle, and the structure can increase the thickness of the connection position of the elastic ring band 3, the first check valve 2 and the valve body 1, thereby improving the stability of the whole swing. The elastic band 3 of the present embodiment is constructed to balance the firmness and flexibility required to accommodate most conventional endoscopic procedures.
It should be noted that, in the present application, the structure of the elastic ring band 3 is not limited to the above three embodiments, and those skilled in the art may develop other structures without creative efforts, as long as the structure of the elastic ring band 3 is capable of making it easily deformed more than the first check valve 2, which falls within the protection scope of the present application. For example, the elastic belt 3 may be an annular sheet-like structure having a constant thickness but a small overall thickness; or a sheet structure having a curved shape, a corrugated structure, a stepped structure, and the like.
Further, in order to realize that the first check valve 2 is less easily deformed than the elastic ring belt 3, in some embodiments of the present application, the thickness of the first check valve 2 may be set to be greater than the thickness of the elastic ring belt 3 at the thinnest position. In practical applications, the type and size of the treatment instrument are different for different cavity surgeries, and the corresponding first one-way valve 2 can also have structures with different sizes.
In the present embodiment, by limiting the thickness of the first check valve 2 to be larger than the thickness of the thinnest portion of the elastic band 3, the elastic band 3 has a portion that is more easily deformed than the first check valve 2 regardless of the size and structure of the first check valve 2, and the elastic band 3 can be deformed preferentially to the first check valve 2.
In view of the above, the present application provides an endoscopic forceps channel sealing member, comprising: a valve body 1, a first one-way valve 2 and an elastic ring belt 3. Wherein, first check valve 2 sets up inside valve body 1, connects the inner wall of valve body 1 through elastic ring area 3. The elastic ring belt 3 is thin and flexible, so that the degree of easy deformation of the elastic ring belt 3 is greater than that of the first check valve 2, so that the first check valve 2 can swing in the valve body 1. When the treatment instrument moves or falls aside, the first one-way valve 2 can swing correspondingly along with the treatment instrument, so that the treatment instrument can be tightly wrapped by the first one-way valve 2 all the time, the sealing performance of the endoscope clamp passage 6 is improved, a gap is avoided, and liquid backflow is prevented.
In some embodiments of the present application, as shown in fig. 2 and 3, the jaw seal further includes a top cover 4 made of soft material and a connecting band 5 for enhancing the sealing effect. In practical application, the top cover 4 and the connecting belt 5 can be made of soft plastics with the same material as the valve body 1, so that the top cover 4 can be conveniently covered on the valve body 1, the integrity of the clamping channel sealing element can be conveniently kept, and the processing and the manufacturing are more facilitated.
Furthermore, the top cover 4 is connected with the outer wall of the valve body 1 through the connecting belt 5, namely the top cover 4, the connecting belt 5 and the valve body 1 are also of an integrated structure. In this embodiment, the top cover 4 is connected to the outer wall of the valve body 1 by the connecting band 5, and the top cover 4 can be used as a fitting part of the valve body 1 by the connecting band 5. In practical application, if the top cover 4 needs to be covered, the top cover 4 directly matched with the valve body 1 can be directly found. In addition, the connecting belt 5 can also keep the top cover 4 connected with the valve body 1 when the top cover 4 falls off due to the accident situation in the operation, so as to avoid falling.
In the actual operation process, the top cover 4 can be selectively covered on the valve body 1 according to the requirement, namely, if the endoscope treatment instrument needs to be replaced repeatedly and leakage cannot occur, the top cover 4 does not need to be covered on the valve body 1, and the top cover 4 is kept in an open state; if the endoscopic treatment instrument is changed only occasionally and it is desired to maintain good sealing performance, it is necessary to cover the top cover 4 on the valve body 1 and work again to enhance the sealing effect of the entire seal.
In order to cover the top cover 4 on the valve body 1, in the technical solution provided by the present application, as shown in fig. 2 and 3, the top cover 4 may be a cylindrical or truncated cone-shaped structure. The side position that is close to top cap 4 top is through the lateral wall of connecting valve body 1 with 5, and top cap 4 is equipped with annular arch 41 on being close to the lateral wall of bottom, 1 inner wall of valve body is equipped with recess 11, top cap 4 closes through protruding 41 and recess 11's cooperation, the lid on the valve body 1. In this embodiment, the detachable connection between the top cover 4 and the valve body 1 can be realized by the cooperation between the protrusion 41 and the groove 11 and the soft structure adopted by the top cover 4 and the valve body 1. Moreover, the cooperation between the protrusion 41 and the groove 11 is more beneficial to maintain the coaxial relationship between the top cover 4 and the first one-way valve 2 in the valve body 1, thereby facilitating the passage of surgical treatment instruments. Further, the inner cavity of the valve body 1 may be a straight cylinder, and stepped annular protrusions are provided at both ends for connecting the endoscope and the top cover 4, respectively.
It should be noted that, in the present embodiment, the protrusion 41 and the groove 11 are matched to realize the detachable connection between the top cover 4 and the valve body 1, and may be realized by various different structural forms. For example, the protrusion 41 is provided on the top cover 4, and the groove 11 is provided on the valve body 1; the bulge 41 is arranged on the valve body 1, and the groove 11 is arranged on the top cover 4; two or more than two spaced bulges can be arranged on the top cover 4 to form a convex ring groove, and a corresponding number of spaced grooves are arranged on the inner wall of the valve body 1 to form a concave ring groove, so that the matching is completed. In addition, in order to cover the top cover 4 on the valve body 1, an inclined chamfer structure can be arranged at the bottom end of the top cover 4 to reduce the resistance in the covering process.
In some embodiments of the present application, a second one-way valve 42 is provided on the top cover 4. The second one-way valve 42 is coaxial with the first one-way valve 2, and a gap is arranged in the middle part of the second one-way valve to tightly wrap the treatment instrument when the top cover 4 covers the valve body 1. In practical applications, the second check valve 42 may be a slit disposed at a central position of the top cover 4, and the inside of the slit is directly penetrated by the treatment device, and the slit tightly wraps the treatment device. And through the coaxial relation with first check valve 2, make treatment instrument pass through second check valve 42 earlier, rethread first check valve 2 forms and carries out the separation with two check valves to the backward flow liquid, increases sealed effect.
Further, in order to facilitate the passage of the treatment instrument, concave holes 43 are formed in the middle positions of the two end surfaces of the top cover 4. The concave holes 43 are arranged at two sides of the second one-way valve 42 to reduce the thickness of the second one-way valve 42, so that on one hand, the solid connecting part between the second one-way valve 42 and the edge of the top cover 4 is thinned, and the swing resistance of the second one-way valve 42 is reduced; on the other hand, the hole penetration depth of the central slit of the entire second check valve 42 can be reduced, facilitating the passage of the treatment instrument.
According to the technical scheme, the end part of the top cover 4 of the endoscope clamp channel sealing element is fixedly connected with the connecting belt 5, and the connecting belt 5 is fixedly connected with the outer surface of the valve body 1. The inner surface of the valve body 1 is fixedly connected with the outer edge of the elastic ring belt 3, and the inner edge of the elastic ring belt 3 is fixedly connected with the outer surface of the first one-way valve 2. The second check valve 42 on the top cover 4 and the first check valve 2 are kept coaxial when the top cover 4 is covered on the valve body 1.
Cavities are arranged inside the first one-way valve 2 and the second one-way valve 42, and through holes are formed in the upper end and the lower end of each cavity and used for endoscope treatment instruments to pass through. The elastic band 3 is thin and flexible, so that the first check valve 2 can swing in any direction with respect to the elastic band 3. The convex groove on the top cover 4 can be matched with the concave groove at the upper end of the valve body 1 and is tightly matched when the top cover 4 is covered. The concave groove at the lower end of the valve body 1 can be matched and fixed with the upper opening of the endoscope clamping passage 6, so that the whole sealing element is arranged at a preset position.
When the sealing element of the endoscope forceps channel provided by the application works, the sealing element is fixed at the opening of the endoscope forceps channel, whether the top cover 4 is covered or not is selected according to needs, and then one end of an endoscope treatment instrument is inserted into the openings of the second one-way valve 42 and the first one-way valve 2 to perform an operation. In the actual operation process, the elastic ring belt 3 is thin and flexible, so that the first one-way valve 2 is allowed to swing along with the action of the treatment instrument. In a reasonable operation range, when the treatment instrument is adjusted in any direction, the first one-way valve 2 and the second one-way valve 42 can be tightly wrapped with the treatment instrument, so that no gap is generated, the sealing effect is good, and the backflow of body fluid or liquid medicine is effectively prevented.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
The portion of the patent that is engaged with the jaw opening is exemplified by an Olympus endoscope, and the size and shape of the jaw opening of other endoscopes can be adjusted properly, but the channel and the sealing portion that are engaged with the instruments and protected by the patent are not changed, and belong to the same protection scope.
Claims (12)
1. An endoscopic jaw seal, comprising:
the valve body (1), the said valve body (1) cooperates and connects the opening of endoscope forceps channel;
a first one-way valve (2) for passage through the treatment device;
an elastic annular band (3) for connecting the first one-way valve (2) and the valve body (1);
wherein the first one-way valve (2) is arranged in the valve body (1); the elastic ring belt (3) is of a soft annular structure sleeved on the outer wall of the first one-way valve (2); the outer circumference of the elastic ring belt (3) is connected with the inner wall of the valve body (1); the easy deformation degree of the elastic ring belt (3) is greater than that of the first one-way valve (2), so that the first one-way valve (2) can swing in the valve body (1).
2. The berm seal according to claim 1, characterized in that said elastic annular band (3), in the direction of transition from the inner wall of the valve body (1) to the first non return valve (2), is gradually reduced in thickness to reduce the oscillation resistance of said first non return valve (2).
3. The berm seal according to claim 1, characterized in that said elastic annular band (3), in the direction of transition from the inner wall of said valve body (1) to said first non-return valve (2), is gradually increased in thickness to reduce the oscillation resistance of said first non-return valve (2).
4. The berm seal according to claim 1, characterized in that said elastic annular band (3), in the direction of transition from the inner wall of said valve body (1) to said first non-return valve (2), has a thickness that is gradually decreasing and then gradually increasing, in order to reduce the oscillation resistance of said first non-return valve (2).
5. The berm seal according to claim 1, wherein said first one-way valve (2) is of a two-layer or more valve body construction;
the middle part of the first one-way valve (2) is provided with a buffer cavity (21), and two ends of the buffer cavity (21) are provided with coaxial through holes so as to tightly wrap a treatment instrument.
6. The berm seal according to claim 1, further comprising a soft top cap (4) and a tie (5), said top cap (4) being used to enhance the sealing effect; the top cover (4) is connected with the outer wall of the valve body (1) through the connecting belt (5).
7. The berm seal according to claim 6, wherein the side wall of the top cover (4) is provided with an annular protrusion (41), the inner wall of the valve body (1) is provided with a groove (11), and the top cover (4) is covered on the valve body (1) through the cooperation of the protrusion (41) and the groove (11).
8. The jaw seal according to claim 6, wherein said top cover (4) is provided with a second one-way valve (42); the second one-way valve (42) is coaxial with the first one-way valve (2), and a gap is formed in the middle of the second one-way valve (42) so that the top cover (4) can tightly wrap the treatment device when covering the valve body (1).
9. The jaw seal according to claim 8, wherein a concave hole (43) is formed in the middle of each of the two end faces of the top cover (4); the concave holes (43) are arranged on two sides of the second one-way valve (42) so as to reduce the thickness of the second one-way valve (42).
10. The jaw seal according to claim 1, wherein said valve body (1) is of cylindrical or truncated-cone shape with a hollow cavity; the first one-way valve (2) is of a circular truncated cone-shaped structure, and the thickness of the first one-way valve (2) is larger than that of the thinnest position of the elastic ring belt (3).
11. The berm seal according to any of claims 1-10, wherein the valve body (1), the first one-way valve (2) and the elastic annular band (3) are of one-piece construction.
12. An endoscopic jaw seal, comprising:
the valve body (1), the said valve body (1) cooperates and connects the opening of endoscope forceps channel;
a first one-way valve (2) for passage through the treatment device;
wherein the first one-way valve (2) is arranged in the valve body (1); first check valve (2) are two-layer or two-layer more than valve body structure to make the yielding degree of first check valve (2) is less than first check valve (2) with the yielding degree of valve body (1) junction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412559.8A CN111938831A (en) | 2019-05-17 | 2019-05-17 | Endoscope clamp channel sealing element |
| PCT/CN2020/078455 WO2020233199A1 (en) | 2019-05-17 | 2020-03-09 | Endoscope passage sealing piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412559.8A CN111938831A (en) | 2019-05-17 | 2019-05-17 | Endoscope clamp channel sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111938831A true CN111938831A (en) | 2020-11-17 |
Family
ID=73336148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910412559.8A Withdrawn CN111938831A (en) | 2019-05-17 | 2019-05-17 | Endoscope clamp channel sealing element |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111938831A (en) |
| WO (1) | WO2020233199A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112656359A (en) * | 2020-12-17 | 2021-04-16 | 上海宇度医学科技股份有限公司 | Channel sealing valve, channel sealing mechanism and all-round hysteroscope |
| US20220061639A1 (en) * | 2020-08-31 | 2022-03-03 | Endospace Corporation | Biopsy valve with accessory tool tactile guard cap position marker |
| WO2023046195A1 (en) * | 2021-09-27 | 2023-03-30 | 思未来医疗科技有限公司 | Biopsy valve for endoscope |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117503020B (en) * | 2023-11-30 | 2024-08-27 | 深圳市星辰海医疗科技有限公司 | Valve assembly and endoscope device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6478731B2 (en) * | 2001-02-23 | 2002-11-12 | Linvatec Corporation | Endoscope-sheath interface using scope light post |
| WO2009119053A1 (en) * | 2008-03-24 | 2009-10-01 | 住友ベークライト株式会社 | De-aeration prevention valve unit for an overtube |
| US8702596B2 (en) * | 2010-09-17 | 2014-04-22 | United States Endoscopy Group, Inc. | Biopsy inlet valve improvements |
| JP5627637B2 (en) * | 2012-05-09 | 2014-11-19 | 富士フイルム株式会社 | Plug |
| CN203059635U (en) * | 2013-01-29 | 2013-07-17 | 上海威尔逊光电仪器有限公司 | Endoscope biopsy valve |
-
2019
- 2019-05-17 CN CN201910412559.8A patent/CN111938831A/en not_active Withdrawn
-
2020
- 2020-03-09 WO PCT/CN2020/078455 patent/WO2020233199A1/en not_active Ceased
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220061639A1 (en) * | 2020-08-31 | 2022-03-03 | Endospace Corporation | Biopsy valve with accessory tool tactile guard cap position marker |
| US12167833B2 (en) * | 2020-08-31 | 2024-12-17 | Endospace Corporation | Biopsy valve with accessory tool tactile guard cap position marker |
| CN112656359A (en) * | 2020-12-17 | 2021-04-16 | 上海宇度医学科技股份有限公司 | Channel sealing valve, channel sealing mechanism and all-round hysteroscope |
| CN112656359B (en) * | 2020-12-17 | 2022-02-08 | 上海宇度医学科技股份有限公司 | Channel sealing valve, channel sealing mechanism and all-round hysteroscope |
| WO2022127187A1 (en) * | 2020-12-17 | 2022-06-23 | 上海宇度医学科技股份有限公司 | Channel sealing valve, channel sealing mechanism and universal hysteroscope |
| WO2023046195A1 (en) * | 2021-09-27 | 2023-03-30 | 思未来医疗科技有限公司 | Biopsy valve for endoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020233199A1 (en) | 2020-11-26 |
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Application publication date: 20201117 |