WO2024001002A1 - Appareil d'échantillonnage d'échantillon de tissu et système d'endoscope - Google Patents

Appareil d'échantillonnage d'échantillon de tissu et système d'endoscope Download PDF

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Publication number
WO2024001002A1
WO2024001002A1 PCT/CN2022/133069 CN2022133069W WO2024001002A1 WO 2024001002 A1 WO2024001002 A1 WO 2024001002A1 CN 2022133069 W CN2022133069 W CN 2022133069W WO 2024001002 A1 WO2024001002 A1 WO 2024001002A1
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WO
WIPO (PCT)
Prior art keywords
sampling
tissue sample
suction
installation
state
Prior art date
Application number
PCT/CN2022/133069
Other languages
English (en)
Chinese (zh)
Inventor
陈东
Original Assignee
新光维医疗科技(苏州)股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 新光维医疗科技(苏州)股份有限公司 filed Critical 新光维医疗科技(苏州)股份有限公司
Publication of WO2024001002A1 publication Critical patent/WO2024001002A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/04—Endoscopic instruments
    • 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
    • A61B1/012—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 characterised by internal passages or accessories therefor
    • A61B1/018—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 characterised by internal passages or accessories therefor for receiving instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/0233—Pointed or sharp biopsy instruments
    • A61B10/0283—Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe

Definitions

  • the present invention relates to the technical field of endoscopes, and in particular to a tissue sample sampling device and an endoscope system.
  • a sampling device is usually provided that is connected to the endoscope.
  • the sampling device includes a suction structure and a sampling piece detachably connected to the suction structure. Human tissue samples can be collected in the sampling piece through the suction structure.
  • the sampling device used in surgery is often placed far away from the endoscope, and the linkage with the endoscope is insufficient, which is not conducive to sampling during the optimal sampling time period.
  • the sampling device is integrated on the endoscope, but the structure of the sampling device is complex, and the manufacturing cost and process are too high, which is not conducive to production.
  • the object of the present invention is to provide a tissue sample sampling device and an endoscope system, which have good linkage with the endoscope and have a simple structure while effectively controlling the on-off sampling.
  • a tissue sample sampling device including: a mounting shell for being disposed on an endoscope, the mounting shell including a suction inlet docked with the endoscope and a suction outlet docked with an external power source; a sampling piece , is provided on the installation shell; and a control part is movably provided on the installation shell, and the control part is provided with a sampling passage for inputting tissue samples to the sampling part; wherein the control part has a third A first state and a second state. When the control member is in the first state, the sampling passage is docked between the suction inlet and the suction outlet; when the control member is in the second state When in the state, the sampling passage is not in contact with the suction inlet and/or the suction outlet.
  • the sampling path includes: a first sampling branch, including a first connection port and a first sampling port; a second sampling branch, including a second connection port and a second sampling port; wherein, the first sampling The first connection port and the second sampling port are placed in the sampling member.
  • a first sampling branch including a first connection port and a first sampling port
  • a second sampling branch including a second connection port and a second sampling port; wherein, the first sampling The first connection port and the second sampling port are placed in the sampling member.
  • control member is provided with a drainage passage.
  • the drainage passage is docked between the suction inlet and the suction outlet.
  • control part includes: a main body part movably connected with the installation shell; a piercing part connected with the main body part and capable of piercing the sampling part along the disassembly and assembly direction of the sampling part. in; wherein, the first sampling port and the second sampling port are both located on the insertion part, and the main body part can move to the first state or the second state relative to the installation shell.
  • the installation shell includes a first installation part
  • the first installation part includes: a first installation part for connecting the main body part, and the main body part is rotatable relative to the first installation part; a second installation part.
  • the mounting part is used to connect the sampling piece; wherein, there is an escape space between the first mounting part and the second mounting part, and the insertion part can extend from the avoidance space to the sampling piece.
  • the first installation part is provided with a first installation cavity
  • the suction inlet and the suction outlet are both connected to the first installation cavity
  • the peripheral side of the main body part is connected to the first installation cavity.
  • the inner wall of the cavity is in close contact.
  • a sealing member is provided between the installation shell and the main body part, and the sealing member is sealed at the communication position between the control member and the installation shell.
  • the second installation part is provided with a second installation cavity, and the sampling piece is at least partially detachably fixed and received in the second installation cavity.
  • control member further includes a handle portion for moving the main body portion, and the handle portion protrudes relative to the main body portion.
  • the sampling member includes: a collector with a collection port; a cover body connected with the collector; and a cover portion provided on the cover body and covering the collection port; wherein, The covering part is at least partially a flexible structure that can be pierced by the piercing part.
  • the flexible structure is made of one of silicone rubber, fluorine rubber, butyl rubber, and PTFE materials, or a composite material made of an arrangement and combination of the above materials.
  • the cover part includes a rubber layer and a plastic layer, the rubber layer faces the collection port, and the plastic layer faces the insertion part.
  • sampling piece is detachably connected to the installation shell through one or more of snapping, threaded connection, magnetic attraction, and fasteners.
  • the installation shell includes: a second installation part, which is detachably connected to the endoscope; and a connection part, which is received between the second installation part and the first installation part and makes the third installation part There is an avoidance gap between a mounting component and the endoscope.
  • the present invention also provides an endoscope system, including: the aforementioned tissue sample sampling device; an endoscope, the tissue sample sampling device is provided on the endoscope; and a suction channel is provided on the endoscope. on the endoscope and connected with the suction inlet.
  • the suction valve also includes: a pipe member connected between the suction passage and the suction inlet; a suction valve connected to the suction passage and/or the pipe member; wherein the suction valve has a guide The suction valve switches from the closed state to the conductive state in response to the pressing operation.
  • the sampling device of the present invention includes an installation shell, a control part and a sampling part.
  • the installation shell is arranged on the endoscope, and the control part and the sampling part are both arranged on the installation shell, thereby improving the linkage between the sampling device and the endoscope, which is beneficial to the Sampling is carried out in a timely manner during the best sampling period;
  • the installation shell is provided with a suction inlet for communicating with the endoscope and a suction outlet for communicating with the external power source.
  • the control part is movablely set on the installation shell and has an input to the sampling part. For the sampling channel of the tissue sample, the control part can be switched to the first state or the second state.
  • the sampling channel In the first state, the sampling channel is connected between the suction inlet and the suction outlet, so that the sampling channel can normally input the tissue sample for sampling.
  • the control part In the software, when it is necessary to cut off the sampling, you only need to switch the control part to the second state to cut off the connection between the sampling passage and the suction inlet and/or suction outlet.
  • the sampling method is as described above, and the installation shell and the control part are There is no need to set up additional on-off structures. While the overall structure of the sampling device is simple, it can effectively control the sampling path.
  • Figure 1 is a schematic structural diagram of the endoscope system of the present invention.
  • FIG. 3 is an exploded structural diagram of FIG. 2 .
  • Fig. 4 is a schematic cross-sectional view of the control member in Fig. 2 when it is in a first state.
  • Figure 5 is a partial enlarged view of Figure 4 at position A.
  • Fig. 6 is a schematic cross-sectional view of the control member in Fig. 2 when it is in a second state.
  • Figure 7 is a schematic cross-sectional view of the mounting shell in the present invention.
  • Figure 8 is a schematic top view of the mounting shell in the present invention.
  • FIG. 9 is a schematic structural diagram of the control component in the present invention.
  • Figure 10 is a schematic structural diagram of the control component in another direction of the present invention.
  • Figure 11 is a schematic exploded view of the sampling element in the present invention.
  • Main body part; 31a first axis; 311, first limiting part; 312, first clamping part; 3121, first guide surface; 3122, second guide surface; 3123, third guide surface; 313, first arm; 32 , inserting part; 33. handle part; 331. protruding part; 332. first indicator mark; 34. sampling passage; 341. first sampling branch; 3411. first connection port; 3412. first sampling port; 342. Second sampling branch; 3421. Second connection port; 3422. Second sampling port; 35. Drainage passage; 351. Third connection port; 352. Fourth connection port; 36. Resistance block; 400. Sampling piece; 41. Collector; 411. Collection port; 42. Cover body; 421. Inner cavity; 422. Insertion port; 43. Covering part; 431. Rubber layer; 432. Plastic layer; 44. Tissue sample mixture ; 45. Air part; 500. Pipe fittings; 600. Suction valve.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
  • Figure 1 corresponds to a tissue sample sampling device according to a preferred embodiment of the present invention. It is used to be installed on the endoscope 100 and docked with the suction channel 11 of the endoscope 100. , so that the human tissue sample flows into the sampling device through the suction passage 11 and is sampled and collected.
  • the control part 300 is movable relative to the installation shell 200 to switch to the first state or the second state.
  • the sampling passage 34 is connected between the suction inlet 201 and the suction outlet 202, and the suction Negative pressure is generated at the inlet 201, and the tissue sample can enter the sampling member 400 through the suction channel 11, the suction inlet 201, and the sampling channel 34 for collection;
  • the control member 300 is in the second state, the sampling channel 34 and the suction inlet 201 and/or the suction outlet 202 is not connected, at this time the suction inlet 201 will not be able to generate negative pressure, so the collection can be stopped.
  • the installation shell 200 is arranged on the endoscope 100, and the control part 300 and the sampling part 400 are both arranged on the installation shell 200, thereby improving the linkage between the sampling device and the endoscope 100, and facilitating the optimal sampling time period.
  • the installation shell 200 is provided with a suction inlet 201 for communicating with the suction passage 11 of the endoscope 100 and a suction outlet 202 for communicating with an external power source.
  • the control part 300 is movably provided on the installation shell 200 and has The sampling channel 34 of the tissue sample is input to the sampling member 400, and the control member 300 can be switched to the first state or the second state.
  • the sampling channel 34 is connected between the suction inlet 201 and the suction outlet 202, so as to The sampling channel 34 can normally input the tissue sample into the sampling member 400.
  • the control member 300 When it is necessary to cut off sampling, the control member 300 only needs to be switched to the second state, thereby cutting off the sampling channel 34 from the suction inlet 201 and/or the suction outlet 202.
  • the overall structure of the sampling device is simple, and at the same time, the sampling path 34 can be effectively controlled.
  • the control piece 300 includes a main body part 31 and a piercing part 32 connected with the main body part 31 .
  • the main body 31 is movably connected to the installation shell 200.
  • the first connection port 3411 and the second connection port 3421 are both located on the main body 31.
  • the main body 31 can move to the first state or the second state relative to the installation shell 200.
  • the insertion portion 32 extends from the end of the main body 31 along the first axis 31 a.
  • the end of the insertion portion 32 has a tapered structure, and its size gradually decreases from one end connected to the main body 31 to the other end. Small.
  • the first sampling port 3412 and the second sampling port 3422 are both located at the end of the insertion part 32 .
  • the sampling piece 400 can be installed on the mounting shell 200 along the direction of the first axis 31a, and the piercing portion 32 is inserted into the sampling piece 400 to realize the connection between the first sampling port 3412 and the second sampling port 3422 and the sampling piece 400. docking.
  • the main body 31 is rotationally connected to the installation shell 200, and the rotation axis direction of the main body 31 is in line with the first The directions of the axes 31a are consistent.
  • the main body 31 can rotate to a preset angle so that the sampling passage 34 is connected with the suction inlet 201 and the suction outlet 202 .
  • the main body part 31 is cylindrical, and the peripheral side of the main body part 31 is rotatably limited to the installation shell 200.
  • a rotating structure (not shown) may be provided between the main body part 31 and the mounting shell 200 to guide the main body part 31 to rotate, which will not be described again here.
  • control part 300 also includes a handle part 33 connected with the main body part 31.
  • the handle part 33 is located outside the installation shell 200. The user can rotate the main part 31 by rotating the handle part 33.
  • the handle portion 33 can adopt a cylindrical structure, a rectangular parallelepiped structure, an irregular special-shaped structure, etc., and other improved designs can be further made based on these structures to facilitate the user to hold the control member 300 by hand and achieve the purpose of driving the control member. 300 moving purposes.
  • the handle portion 33 includes at least one protruding portion 331 extending outward from the peripheral side of the main body portion 31 , preferably two protruding portions 331 , which are arranged oppositely.
  • the handle portion 33 is provided with a first indicator mark 332 for indicating the status of the control member 300.
  • the first indicator mark 332 is provided on the protruding portion 331, and the first indicator mark 332 is along the protruding portion 331.
  • the installation shell 200 is provided with a second indicator mark 203, and the number of the second indicator marks 203 is two.
  • the second indicator mark 203 can be a one-way arrow, a text mark, or a combination of the two.
  • the suction passage 11 of the endoscope 100 is usually used to drain excess body fluids from the human body.
  • the control member 300 is also provided with a drain passage 35 , and the drain passage 35 and the sampling passage 34 are independent of each other.
  • the drainage passage 35 is connected between the suction inlet 201 and the suction outlet 202, so that the body fluid can be directly discharged from the drainage passage 35 into the designated area without the sampling part 400.
  • the drain passage 35 includes a third connection port 351 and a fourth connection port 352 located on the main body 31 .
  • the third connection port 351 is used to connect with the suction inlet 201
  • the fourth connection port 352 is used to connect with the suction outlet 202 Butt joint.
  • a buffer structure (not shown) is provided between the power source and the suction outlet 202, and the buffer structure can buffer the human tissue samples discharged from the suction outlet 202.
  • the cross-sectional shapes of the sampling passage 34 and the drain passage 35 are circular or nearly circular to avoid flow dead corners.
  • the diameter of the drainage passage 35 is 1.5 ⁇ 3 mm, and the diameter of the first sampling branch 341 is not smaller than the diameter of the second sampling branch 342.
  • the installation shell 200 includes a first installation part 21 and a second installation part 22, wherein the first installation part 21 is used to connect the control part 300 and the sampling part 400, and the first installation part 21 is used to connect the control part 300 and the sampling part 400.
  • the two mounting pieces 22 are used to connect the endoscope 100 .
  • the first mounting part 21 includes a first mounting part 211 and a second mounting part 212 that are connected to each other.
  • the control part 300 is connected to the first mounting part 211.
  • the sampling part 400 is connected to the second mounting part 212.
  • the first mounting part 211 There is an escape space between the control member 300 and the second installation part 212 .
  • the control member 300 can extend from the escape space toward the sampling member 400 to dock with the sampling member 400 , so that the tissue sample flows into the sampling member 400 .
  • the first installation part 211 is provided with a first installation cavity 2111 for accommodating the control component 300
  • the second installation part 212 is provided with a second installation cavity 2121 for accommodating the sampling component 400
  • the first mounting cavity 2111 is recessed from the side of the first mounting part 211 facing away from the second mounting part 212 toward the second mounting part 212
  • the second mounting cavity 2121 is formed from the side of the second mounting part 212 facing away from the first mounting part 211
  • a mounting portion 211 is recessed, and an opening is provided between the first mounting cavity 2111 and the second mounting cavity 2121 to form the above-mentioned avoidance space.
  • control part 300 is installed into the first installation part 211 from the opening side of the first installation part 211
  • sampling part 400 is installed into the second installation part 212 from the opening side of the second installation part 212
  • sampling part 400 When the second mounting part 212 is installed, the control part 300 can be driven to be inserted into the sampling part 400 .
  • the inner wall of the first installation cavity 2111 is in close contact with the outer peripheral side of the main body 31 to reduce the gap between the main body 31 and the installation shell 200, thereby improving the sampling passage 34 and/or the drainage passage 35.
  • the sealing property connected with the suction inlet 201 and the suction outlet 202 can also increase the friction between the control member 300 and the first installation cavity 2111, making it difficult for the control member 300 to move relative to the first installation cavity when not subjected to rotational force.
  • the installation cavity 2111 rotates to improve the reliability of the control part 300.
  • a seal (not shown) can be provided between the first installation cavity 2111 and the main body 31 , and the seal is provided around the circumference of the main body 31 to improve the connection between the main body 31 and the first installation cavity 2111 of sealing.
  • the number of sealing members is at least two, and they are provided on both sides of the suction inlet 201 and the suction outlet 202 along the axial direction of the main body 31 , that is, the first axis 31 a direction.
  • the seals may specifically be O-shaped sealing rings, V-shaped sealing rings, etc.
  • the sealing members may be made of materials with certain elastic deformation capabilities, such as rubber.
  • the inner wall of the first mounting cavity 2111 and/or the outer wall of the main body 31 may also be provided with a mounting groove (not shown) to install the seal and limit the movement of the seal in the axial direction of the main body 31 .
  • the sampling device further includes a first limiting structure, which is adapted to limit the movement of the control member 300 in the direction of the first axis 31a after the control member 300 is installed at the preset position.
  • the first limiting structure includes a first limiting part 311 , a first engaging part 312 and a second limiting part 2112 .
  • the first limiting portion 311 protrudes from the circumferential side of the main body 31 and is located at an end of the main body 31 away from the insertion portion 32 .
  • the first limiting portion 311 is continuously or intermittently distributed along the circumferential direction of the main body 31 to control
  • the component 300 can gradually extend into the first installation cavity 2111 along the first axis 31a, and is installed when the first limiting portion 311 abuts against the opening side of the first installation cavity 2111.
  • the first engaging portion 312 protrudes relative to the circumferential side of the main body 31 and is located at an end of the main body 31 away from the first limiting portion 311 .
  • the first engaging portion 312 is continuously or intermittently distributed along the circumferential direction of the main body 31 , the first latch portion 312 can move in a direction away from the inner wall of the first installation cavity 2111 when receiving a force perpendicular to the direction of the first axis 31a, and can be reset when the force is removed.
  • the second limiting portion 2112 is recessed on the inner wall of the first installation cavity 2111 away from the opening.
  • the second limiting portion 2112 is continuously or intermittently distributed along the circumferential direction of the first installation cavity 2111 .
  • the first clamping portion 312 is restricted by the inner wall of the first installation cavity 2111 and moves away from the inner wall to ensure that the main body 31 enters the first installation smoothly.
  • the first engaging portion 312 gradually moves toward the second limiting portion 2112, and resets outward when reaching the second limiting portion 2112 to engage with the second limiting portion 2112.
  • the first limiting portion 311 abuts against the opening side of the first mounting cavity 2111 .
  • the first clamping part 312 includes a first guide surface 3121 facing the first installation cavity 2111.
  • the first guide surface 3121 is away from the first limit.
  • the position portion 311 is inclined outwardly from one side to the other side relative to the first axis 31a.
  • the maximum distance from the first guide surface 3121 to the first axis 31a is greater than the distance from the inner wall of the first mounting cavity 2111 to the first axis 31a.
  • first clamping portion 312 also includes a second guide surface 3122 connected to the side of the first guide surface 3121 close to the inner wall of the first installation cavity 2111.
  • the second guide surface 3122 faces the inner wall of the first installation cavity 2111, so as to After entering the first installation cavity 2111, the first clamping portion 312 resists the inner wall of the first installation cavity 2111 and guides the installation of the control member 300.
  • the second limiting part 2112 includes a fourth guide surface 2113.
  • the distance from the fourth guide surface 2113 to the first axis 31a is greater than the distance from the first installation cavity 2111 to the first axis 31a, so that between the fourth guide surface 2113 and the first installation A limiting surface 2114 is formed between the inner walls of the cavity 2111 to limit the movement of the first engaging portion 312 .
  • the first clamping portion 312 also includes a third guide surface 3123.
  • the third guide surface 3123 is connected to the second guide surface 3122 and is connected with the first guide surface 3121.
  • the third guide surface 3123 is inclined toward the first axis 31a from one side contacting the second guide surface 3122 to the other side.
  • the limiting surface 2114 is inclined toward the first axis 31a to cooperate with the third guide surface 3123.
  • the first clamping portion 312 will be guided by the limiting surface 2114 toward the first axis 31a. Move and reduce the distance between the second guide surface 3122 and the first axis 31a, so that the second guide surface 3122 contacts the inner wall of the first installation cavity 2111.
  • the first clamping part 312 is made of a material with a certain elastic deformation ability
  • the main body part 31 is made of a material with a certain elastic deformation ability, so that when the first clamping part 312 is subjected to a vertical first force, When a force is applied in the direction of the axis 31a, it can move toward the first axis 31a and avoid the first mounting cavity 2111.
  • the first limiting part 311, the first clamping part 312 and the main body part 31 can be integrally formed or separately formed and assembled together. In this embodiment, in order to facilitate assembly, the first limiting part 311, the first clamping part 311 and the main body part 31 can be assembled together.
  • the portion 312 and the main body portion 31 are integrally formed.
  • the main body 31 has a first arm 313 extending along the first axis 31 a from an end connected with the insertion part 32 .
  • the first arm 313 extends along the main body 31 .
  • the portion 31 is distributed intermittently in the circumferential direction.
  • the diameter of the first arm portion 313 is preferably the same as the diameter of the main body portion 31 so as to closely fit the inner wall of the first installation cavity 2111 .
  • the first clamping part 312 is provided on the first arm part 313. There is an avoidance space between the first arm part 313 and the insertion part 32.
  • the first arm part 313 can be protected when receiving a force in the direction perpendicular to the first axis 31a. Bending inward, the first engaging portion 312 is driven to move toward the first axis 31a.
  • the number of the first arm portions 313 is two, and they are symmetrically arranged on both sides of the first axis 31a.
  • the sampling device includes a second limiting structure, and the second limiting structure is adapted to rotate the control member 300 between the first extreme position and the second extreme position.
  • the sampling channel 34 is in the first state
  • the control member 300 moves to the second extreme position
  • the sampling channel 34 is in the second state.
  • the second limiting structure includes a resistance block 36 provided on the control member 300 , and the resistance block 36 can be provided on the main body part 31 and/or the handle part 33 .
  • the installation shell 200 is provided with a limiting groove 24 for accommodating the resisting block 36.
  • the limiting groove 24 extends along the moving direction of the resisting block 36.
  • the resisting block 36 can rotate with the control member 300 to both sides of the limiting groove 24. end to reach the first extreme position and the second extreme position.
  • the limiting groove 24 is provided on the opening side of the first mounting part 211.
  • the limiting groove 24 may be recessed inward from the opening side of the first mounting part 211; or the limiting groove 24 may be formed from the opening of the first mounting part 211.
  • the limiting ring 25 is partially cut away to form a limiting groove 24; the first limiting portion 311 can offset the limiting block or the limiting ring 25 on the opening side of the first installation cavity 2111.
  • the sampling member 400 includes a collector 41 , a cover 42 and a capping part 43 .
  • the collector 41 has a bottle structure and is provided with a collection port 411.
  • the cover 42 is connected to the collector 41, and the cover 42 and the collector 41 can be fixed through threaded connection, snap connection, or other means.
  • An inner cavity 421 is opened inward on the side of the cover 42 facing the collection port 411 , and the inner cavity 421 is used for mating with the collector 41 .
  • the capping part 43 is at least partially a flexible structure that can be pierced by the piercing part 32 .
  • the capping part 43 is fixedly received in the inner cavity 421 and covers the collection opening 411 .
  • the side of the inner cavity 421 opposite to its opening side is provided with a piercing opening 422, and the capping part 43 covers the piercing opening 422 at the same time.
  • the insertion part 32 can enter the collector 41 through the insertion port 422, the capping part 43 and the collection port 411 in sequence.
  • the capping part 43 can be made of one of silicone rubber, fluorine rubber, butyl rubber, and PTFE materials, or a composite material made of an arrangement and combination of the above materials. Since the capping part 43 has elasticity, it can maintain the sealing between the piercing part 32 and the capping part 43 after the piercing part 32 is pierced, and can restore the original shape after the sampling piece 400 is separated from the piercing part 32 trend, it will eventually return to the shape before being punctured, that is, it will automatically close, preventing the tissue sample inside it from coming into contact with the external gas, and the sampling piece 400 can be directly used for inspection and testing of other instruments without the need for turnover again.
  • the capping part 43 has a composite gasket structure.
  • the capping part 43 includes a rubber layer 431 and a plastic layer 432.
  • the rubber layer 431 has a first thickness
  • the plastic layer 432 has a second thickness. One thickness is greater than the second thickness.
  • the rubber layer 431 faces the collection port 411
  • the plastic layer 432 faces the insertion port 422 and the insertion part 32.
  • the insertion part 32 is inserted into the collector 41 through the plastic layer 432 and the rubber layer 431 in sequence.
  • the plastic layer 432 can be made of the aforementioned PTFE or other plastics with excellent chemical stability.
  • the plastic layer 432 By orienting the plastic layer 432 toward the insertion port 422, the plastic layer 432 can provide support when the insertion portion 32 is inserted, and can allow the insertion portion 32 to reach the front of the rubber layer 431, and the insertion resistance can be released through the reverse resistance of the plastic layer 432. part of the insertion force of the part 32, thereby reducing the excessive insertion force used when the insertion part 32 is inserted, resulting in the excessive avoidance space formed on the rubber layer 431, and further causing excessive and/or excessive cracks and gaps. This problem ensures that the size of the avoidance space and the accompanying crack gaps are as small as possible, and the sealing performance is improved. Moreover, the second thickness of the plastic layer 432 is smaller, and the first thickness of the rubber layer 431 is larger.
  • the smaller thickness of the plastic layer 432 can ensure that it is easy to insert while leaking the insertion force of the insertion part 32.
  • the larger thickness of the rubber layer 431 Large thickness can ensure sealing effect.
  • the state of the inserting part 32 during and after insertion can be better maintained, making it easier for the inserting part 32 to be inserted into the collector 41 along the inserting direction, and improving the insertion of the inserting part 32.
  • the regularity of the escape space formed after stabbing, and furthermore, when the insertion part 32 is pulled out, the escape space closed after the cover part 43 rebounds has better sealing performance.
  • the rubber layer 431 and the plastic layer 432 preferably have a warped portion (not shown in the figure), the warped portion protrudes toward the cover 42 , and the warped portion makes the rubber layer 431 and the plastic layer 432 It has a warped original shape.
  • the plastic layer 432 and the rubber layer 431 have a tendency to recover to the original warped shape due to their own rebound characteristics.
  • the deformation amount of the rubber layer 431 and the plastic layer 432 is smaller than when the warping part is not provided.
  • the avoidance space formed on the rubber layer 431 by the insertion part 32 and The cracks and gaps are smaller and the sealing performance is better.
  • the outer diameter of the rubber layer 431 and the plastic layer 432 is slightly larger than the inner diameter of the inner cavity 421.
  • the sampling member 400 is at least partially placed in the second installation cavity 2121 .
  • the sampling piece 400 is detachably connected to the second mounting part 212 of the mounting shell 200 through one or more of snapping, threaded connection, magnetic attraction, and fasteners.
  • the cover 42 is received in the second installation cavity 2121, and the cover 42 and the second installation cavity 2121 are preferably fixed in a snap manner.
  • the specific buckling method of the cover 42 and the second installation cavity 2121 may refer to the buckling structure of the control member 300 and the first installation cavity 2111 .
  • the second mounting part 212 is recessed with a plurality of notches 2122 from its opening side along the direction of the first axis 31a.
  • the side wall between two adjacent notches 2122 of the second mounting part 212 forms a second arm part 2123.
  • the second arm part The inner wall of 2123 is protruding with a second engaging portion 2124.
  • the second engaging portion 2124 is located near the opening side of the second mounting portion 212.
  • the structure of the second engaging portion 2124 is similar to that of the first engaging portion 312. The present invention will not be described in detail here.
  • the cover 42 is installed from the opening side of the second installation cavity 2121 along the first axis 31a, and when passing through the second clamping portion 2124, a force is provided to drive the second arm portion 2123 outward, so that It passes through the second clamping portion 2124 smoothly.
  • the cover 42 abuts against the side of the second installation cavity 2121 away from the opening, the cover 42 is installed in place.
  • the second arm 2123 is reset and restricts the cover 42 from being separated from the second mounting cavity 2124 . 2. Installation cavity 2121.
  • the second mounting member 22 may be detachably connected to the endoscope 100 through one or more of snap connections, threaded connections, fasteners, etc.
  • the second mounting member 22 and the endoscope 100 are fixed by a sampling clamping method.
  • the second mounting part 22 is a ferrule with certain elasticity.
  • the mounting shell 200 also includes a connecting piece 26 connected between the second mounting piece 22 and the first mounting piece 21.
  • the connecting piece 26 can provide an avoidance gap between the first mounting piece 21 and the endoscope 100, thereby avoiding The endoscope 100 restricts the disassembly and assembly of the control part 300 and the sampling part 400 .
  • the first mounting part 21, the second mounting part 22 and the connecting part 26 are integrally formed.
  • the present invention also provides an endoscope system, including the aforementioned sampling device and an endoscope 100 .
  • the sampling device is detachably installed on the endoscope 100 through a second mounting member 22 .
  • the speculum 100 is provided with a suction passage 11, which is connected with the suction inlet 201. Tissue samples in the human body can enter the suction inlet 201 along the suction passage 11.
  • the endoscope 100 in the endoscope system of this application refers to an endoscope that can be used for observation and/or treatment.
  • the endoscope 100 in this application includes all endoscopes 100, such as bronchial tubes. Endoscope, sinusoscope, gastroenteroscope, duodenoscope, laparoscope, etc.
  • the types include but are not limited to optical endoscope, electronic endoscope, fiber endoscope, etc., which are all within the scope of protection of this application. .
  • the endoscopic system further includes a tubing member 500 and a suction valve 600.
  • the pipe fitting 500 is connected between the suction passage 11 and the suction inlet 201 , and the suction valve 600 is used to control the opening and closing of the pipe fitting 500 .
  • the suction valve 600 has a conductive state and a closed state, and the suction valve 600 can be switched from a closed state to a conductive state in response to a pressing operation.
  • the pipe member 500 and the suction valve 600 can be integrated on the endoscope 100 or the sampling device, and the pipe member 500 can also be integrally formed with the endoscope 100 or the sampling device.
  • the invention is not limited here.
  • the suction valve 600 may be provided on the suction passage 11; or on the pipe member 500; or at the connection between the suction passage 11 and the pipe member 500.
  • the pipe member 500 is detachably connected between the suction passage 11 and the suction inlet 201 to facilitate subsequent parts replacement of the endoscope system.
  • the suction valve 600 is connected between the suction passage 11 and the pipe member 500, thereby avoiding the need to add additional connection structures to connect the suction passage 11 and the pipe member 500.
  • the suction valve 600 is fixedly provided on the endoscope 100, thereby fixing the suction passage 11 and the pipe fitting 500 on the endoscope 100 to prevent the suction passage 11 and the pipe fitting 500 from shaking after being connected.
  • the pipe member 500 is preferably a flexible tubular structure.
  • the pipe member 500 can also be provided between the suction passage 11 and the suction valve 600, thereby facilitating the suction valve 600 and the suction inlet 201. Attract connections between 11 pathways.
  • the installation process of the present invention is as follows: snap the control part 300 into the first mounting part 211 from the opening side of the first mounting part 211; snap the second mounting part 22 onto the endoscope 100 to realize the connection between the sampling device and the endoscope. 100 connections; the sampling piece 400 is inserted into the second mounting part 212 from the opening side of the second mounting part 212. During this process, the insertion part 32 of the control part 300 penetrates into the sampling piece 400; and then a pipe piece is inserted into the second mounting part 212.
  • Both ends of the pipe fitting 500 are respectively connected to the outlet of the suction valve 600 and the connector 23 at the suction inlet 201 to realize pipeline communication between the sampling device and the endoscope 100;
  • the inlet of the valve 600 is connected to the suction passage 11;
  • the connector 23 at the suction outlet 202 is connected to an external power source to provide suction power.
  • the working principle of the present invention is as follows: when there is no need to collect human tissue samples, the control member 300 is rotated to the second state. At this time, the drainage passage 35 is connected between the suction inlet 201 and the suction outlet 202; the power source is turned on. And press the suction valve 600. At this time, the power source suctions the drainage passage 35, so that the air pressure value in the drainage passage 35 is lower than the air pressure at the tissue sample to be collected in the human body. The tissue samples pass through the suction in sequence under the action of the air pressure difference. The passage 11 , the suction valve 600 and the drain passage 35 discharge the buffer from the suction outlet 202 .
  • the control member 300 When the user believes that an appropriate amount of tissue sample needs to be collected when necessary, the control member 300 is rotated to the first state. At this time, the sampling passage 34 is connected between the suction inlet 201 and the suction outlet 202; the power source is turned on. And press the suction valve 600. At this time, the second sampling branch 342 connected to the suction outlet 202 sucks the internal space of the sampling part 400 from the second sampling port 3422, so that the air pressure value in the internal space of the sampling part 400 is lower than the sampling The external air pressure of the component 400 and the air pressure of the tissue sample to be collected in the human body. Under the action of the air pressure difference, the tissue sample passes through the suction passage 11, the suction valve 600 and the first sampling branch 341 in sequence, and enters the sampling component from the first sampling port 3412. Within 400 a tissue sample mixture 44 is formed.
  • the user can rotate the control member 300 to the second extreme position, or release the pressing state of the suction valve 600, or turn off the power source, etc., to prevent the tissue sample from continuing to flow into the sampling member. 400.
  • the control methods are diverse and easy to operate to cope with various emergencies.
  • the tissue sample mixture 44 When the user fails to stop the collection operation in time, since the first sampling port 3412 and the second sampling port 3422 are both located in the sampling piece 400, the tissue sample mixture 44 will gradually increase and fill the air portion 45 of the sampling piece 400. When the tissue sample mixture When 44 completely covers the second sampling port 3422, the tissue sample mixture 44 will stop increasing and maintain a dynamic balance at the second sampling port 3422, ensuring the safety of use.
  • the present invention at least has the following advantages:
  • the collection device in the present invention is composed of a control part, an installation shell and a sampling part.
  • the structure and manufacturing process are simpler than the existing technology, which is conducive to improving production efficiency, saving energy and reducing costs. .
  • the sampling device has good sealing performance.
  • the first connection port, the second connection port, the third connection port and the fourth connection port of the control part are in close contact with the installation shell, so that they can be connected to the suction inlet and suction outlet. Tightly connected to avoid leakage; there is also a seal between the control part and the installation shell.
  • the connection point between the control part and the installation shell is located in the closed space formed by the seal, which can further prevent leakage.
  • sampling part and the control part are connected by inserting, which is simple to operate.
  • the cover on the sampling part will automatically close, preventing the internal organization of the sampling part.
  • the sample is in contact with external gas, and the sampling piece can be directly used for inspection and testing of other instruments without the need for turnover again.
  • the sampling device is directly fixed on the endoscope, forming an endoscope system with strong linkage, which is conducive to timely and effective sampling at the best sampling time period.
  • the state switching of the control part has good reliability.
  • the control part fits closely with the installation shell.
  • the control part requires a large rotation force and is not easy to rotate in an unstressed state.
  • the sampling device is equipped with a second limit structure.
  • the second limit The bit structure can guide the user to rotate the control member to the first state or the second state.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
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  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Optics & Photonics (AREA)
  • Endoscopes (AREA)

Abstract

L'invention divulgue un appareil d'échantillonnage d'échantillon de tissu et un système d'endoscope. L'appareil d'échantillonnage d'échantillon de tissu comprend : une coque de montage, utilisée pour être agencée sur un endoscope, la coque de montage comprenant une entrée d'aspiration pour connexion avec l'endoscope et une sortie d'aspiration pour connexion avec une source d'alimentation externe ; un élément d'échantillonnage, agencé sur la coque de montage ; et un élément de commande, agencé de façon mobile sur la coque de montage, et pourvu d'une voie d'échantillonnage utilisée pour délivrer un échantillon de tissu dans l'élément d'échantillonnage. L'élément de commande a un premier état et un second état ; lorsque l'élément de commande est dans le premier état, la voie d'échantillonnage est connectée entre l'entrée d'aspiration et la sortie d'aspiration, et lorsque l'élément de commande est dans le second état, la voie d'échantillonnage n'est pas connectée à l'entrée d'aspiration et/ou à la sortie d'aspiration. La présente invention a une liaison élevée avec l'endoscope, a une structure globale simple, et peut, par ailleurs, commander efficacement la voie d'échantillonnage.
PCT/CN2022/133069 2022-06-27 2022-11-21 Appareil d'échantillonnage d'échantillon de tissu et système d'endoscope WO2024001002A1 (fr)

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CN116019497A (zh) * 2023-03-16 2023-04-28 湖南省华芯医疗器械有限公司 一种取样盖、样本容器及取样装置
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CN118593029A (zh) * 2024-08-08 2024-09-06 湖南省华芯医疗器械有限公司 一种取样装置及内窥镜

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