A disposable specimen collector

Abstract

The present invention provides a disposable specimen collector, which relates to the technical field of medical devices. It includes a handheld part, a connecting part and a sampling part. The connecting part is connected between the handheld part and the sampling part. The sampling part is provided with a sampling arm, and the sampling arm is connected with a driving member. The driving member is used to drive the sampling arm to open and close, and a sampling wire basket for collecting specimens is arranged on the sampling arm. The disposable specimen collector provided by the present invention can enter the digestive tract through the endoscopic biopsy hole under the endoscope, enter once and complete the collection and picking of multiple specimens, which is very convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly, to a disposable specimen collector. Background Art

[0002] Polyps and other living tissues often grow in the digestive tract, and doctors need to collect and test them. Before aspirating the specimen after endoscopic resection of digestive tract polyps, the traditional method of medical staff is to place a layer of gauze at the interface of the suction tube and directly aspirate the specimen into the suction bottle after the specimen is aspirated. If multiple digestive tract polyps are removed endoscopically at one time, the gauze needs to be placed repeatedly, and then the gauze is removed to collect the aspirated specimen, which is time-consuming and laborious.

[0003] There is also a method of directly inserting forceps into the digestive tract, removing the entire polyp and then taking it out. If multiple collections are required, only repeated insertion and removal can be performed, increasing the pain of the patient.

[0004] Therefore, in view of the current deficiencies in the clinical removal of multiple polyps or large specimens, which often require multiple removals or cannot be completely removed, this application specifically proposes a disposable specimen collector to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a disposable specimen collector to solve the above problems.

[0006] The embodiments of the present invention are implemented as follows:

[0007] A disposable specimen collector includes a handheld part, a connecting part, and a sampling part. The connecting part is connected between the handheld part and the sampling part. The sampling part is provided with a sampling arm, the sampling arm is connected with a driving member, and the driving member is used to drive the sampling arm to open and close. A sampling mesh basket for collecting specimens is arranged on the sampling arm.

[0008] Further, in some embodiments of the present invention, the sampling arm includes a fixed arm and a movable arm. The fixed arm is fixed to the front end of the connecting part, and the movable arm is rotatably connected to the front end of the connecting part through a first pivot.

[0009] The advantage of the above design is that: the fixed arm is fixedly connected to the connecting part, and the movable arm is rotatably connected to the connecting part through the first pivot, so that the sampling arm can be freely opened and closed, facilitating the opening of the sampling arm to pick up the specimen when taking the specimen, and when not taking the specimen, the sampling arm is closed, without occupying space.

[0010] Further, in some embodiments of the present invention, the driving member includes a first transmission wheel disposed between the fixed arm and the movable arm. The first transmission wheel is fixedly sleeved on the first pivot shaft. The connecting portion is provided with a hollow inner cavity. A second pivot shaft is provided at one end of the hollow inner cavity away from the first transmission wheel. A second transmission wheel is fixedly sleeved on the second pivot shaft. The first transmission wheel and the second transmission wheel are in transmission connection, and the second pivot shaft extends out of the hollow inner cavity, and a runner assembly is provided at the end of the second pivot shaft.

[0011] The advantage of the above design is that: by driving the second pivot shaft to rotate through the runner assembly, the second pivot shaft drives the second transmission wheel to rotate, so the second transmission wheel drives the first transmission wheel to rotate. Correspondingly, the first transmission wheel drives the first pivot shaft to rotate. Furthermore, the rotation of the first pivot shaft realizes the rotation of the movable arm, so that the material taking arm can be freely opened and closed.

[0012] Further, in some embodiments of the present invention, the runner assembly includes a driving roller fixedly sleeved on the end of the second pivot shaft and a damping roller arranged side by side with the driving roller. The damping roller is used to limit the self-rotation of the driving roller.

[0013] The advantage of the above design is that: a runner assembly composed of a driving roller and a damping roller is adopted. Thus, by rotating the driving roller, the second pivot shaft can be driven to rotate, the second pivot shaft drives the second transmission wheel to rotate, so the second transmission wheel drives the first transmission wheel to rotate. Correspondingly, the first transmission wheel drives the first pivot shaft to rotate. Furthermore, the rotation of the first pivot shaft realizes the rotation of the movable arm, so that the material taking arm can be freely opened and closed. At the same time, due to the existence of the damping roller, after the driving roller completes the adjustment of the opening and closing angle of the material taking arm, the damping roller can prevent the driving roller from rotating freely, avoiding the active closing of the material taking arm during the picking of the specimen.

[0014] Further, in some embodiments of the present invention, the damping roller is externally tangent to the driving roller, and a retractable damping cap is provided at the tangent point of the damping roller. A plurality of damping grooves for accommodating the damping cap are circumferentially arranged on the outer circumferential surface of the driving roller.

[0015] The advantage of the above design is that: by providing a damping cap on the damping roller and circumferentially arranging damping grooves on the outer circumferential surface of the driving roller, the damping cap can be embedded into the damping grooves, thereby restricting the free rotation of the driving roller.

[0016] Further, in some embodiments of the present invention, the damping cap includes a spherical crown-shaped brim, a guide post and a return spring. A groove is provided at the tangent point of the damping roller. The guide post is fixed in the groove. The spring and the brim are both slidably sleeved on the guide post.

[0017] The advantage of the above design is that the brim is mounted on the guide column in a sliding connection, so that when the active roller is rotated, the active roller can press the damping cap into the groove, so that the active roller can rotate freely under the action of external force, and the spring can pop out the damping cap when the damping groove of the active roller is opposite to the damping cap, thereby achieving the purpose of damping.

[0018] Furthermore, in some embodiments of the present invention, a paddle wheel is integrally formed on the outer end surface of the active roller, and a plurality of paddles are arranged in a circumferential array on the outer circumferential surface of the paddle wheel.

[0019] The advantage of the above design is that by setting a dial wheel fixed to the active roller and setting a paddle on the dial wheel, the dial wheel can be rotated by turning the paddle, thereby driving the active roller to rotate, thereby facilitating the rotation of the rotating wheel assembly.

[0020] Furthermore, in some embodiments of the present invention, the handheld portion is provided with a protective soft cover.

[0021] The advantage of the above design is that the protective soft cover makes it convenient for medical staff to hold the device for operation.

[0022] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0023] The present invention provides a disposable specimen retriever. When in use, the retriever is sent into the affected part through the endoscopic biopsy channel, and then the sampling arm is opened to align the mouth of the sampling basket with the specimen, so that the specimen is picked up into the sampling basket. The specimen can be collected and picked up multiple times under the endoscope at one time, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic structural diagram of a disposable specimen collector provided by an embodiment of the present invention;

[0026] Figure 2 A cross-sectional view of a disposable specimen retriever provided by an embodiment of the present invention;

[0027] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 4 A cross-sectional view of the damping roller.

[0029] Icon: 1 - Handheld part, 2 - Connecting part, 201 - Hollow inner cavity, 3 - Sampling part, 31 - Sampling arm, 32 - Sampling basket, 310 - Fixed arm, 311 - Movable arm, 4 - First transmission wheel, 5 - Second transmission wheel, 6 - First pivot, 7 - Transmission belt, 8 - Second pivot, 9 - Rotating wheel assembly, 91 - Driving roller, 92 - Damping roller, 910 - Damping groove, 920 - Damping cap, 9201 - Cap brim, 9202 - Guide post, 9203 - Return spring, 93 - Groove, 94 - Dial, 940 - Paddle. Detailed implementation mode

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0032] Embodiment

[0033] Please refer to Figures 1 to 4 As shown, this embodiment provides a disposable specimen recycler, including a handheld part 1, a connecting part 2, and a sampling part 3. The connecting part 2 is connected between the handheld part 1 and the sampling part 3, and the sampling part 3 is provided with an openable and closable sampling arm 31.

[0034] Specifically:

[0035] The above-mentioned handheld part 1 is integrally formed at the end of the connecting part 2, and a protective soft sleeve is sleeved on the handheld part 1 to facilitate the operation of medical staff.

[0036] The above-mentioned connecting part 2 has a hollow inner cavity 201, and the sampling part 3 is arranged at the front end of the connecting part 2. Among them, the sampling part 3 includes a sampling arm 31 composed of a fixed arm 310 and a movable arm 311, and a sampling basket 32 is arranged on the sampling arm 31. The fixed arm 310 is integrally formed on one inner wall surface of the hollow inner cavity 201 of the connecting part 2, and the movable arm 311 is rotatably connected to the other inner wall surface of the hollow inner cavity 201 through a first pivot 6. It should be noted that the first pivot 6 is rotatable here, the movable arm 311 is fixedly sleeved on the first pivot 6, and the first pivot 6 is not connected to the fixed arm 310. At the same time, the movable arm 311 has a right-angle bend, so that the movable arm 311 and the fixed arm 310 are kept in the same plane.

[0037] Among them, the lengths of the fixed arm 310 and the movable arm 311 are about 3 - 4 cm, the distance between the front ends of the sampling arm 31 and the movable arm 311 in the fully unfolded state is about 3 - 4 cm, and the depth of the sampling basket 32 is 2 - 3 cm.

[0038] In order to realize the free opening and closing of the sampling arm 31, a driving member is also installed in the hollow inner cavity 201 to drive the opening and closing of the movable arm 311.

[0039] Specifically, the above-mentioned driving member includes a first transmission wheel 4, a second transmission wheel 5 and a transmission belt 7. The first transmission wheel 4 is installed between the fixed arm 310 and the movable arm 311, and the first transmission wheel 4 is fixedly sleeved on the first pivot 6, while the second transmission wheel 5 is arranged at one end of the hollow inner cavity 201 far from the first transmission wheel 4 through a pivot, and the transmission belt 7 is used to drive-connect the first transmission wheel 4 and the second transmission wheel 5. It should be noted here that the second pivot 8 is rotatably connected to the connecting part 2, and the second transmission wheel 5 is fixedly sleeved on the second pivot 8.

[0040] At the same time, one end of the second pivot 8 penetrates through the connecting part 2 and a runner assembly 9 is fixedly sleeved on the end exposed from the connecting part 2. The runner assembly 9 is used to drive the driving member to act.

[0041] Specifically, the above-mentioned runner assembly 9 includes a driving roller 91 and a damping roller 92. The driving roller 91 is fixedly sleeved on the end of the second pivot 8, while the damping roller 92 is arranged on the outer wall surface of the connecting part 2 through a fixed shaft, and the damping roller 92 is non-rotatable. At the same time, the damping roller 92 is externally tangent to the driving roller 91.

[0042] Furthermore, a number of damping grooves 910 are circumferentially arrayed on the outer circumferential surface of the above-mentioned driving roller 91. The damping grooves 910 are arc-shaped and are in smooth transition with the outer circumferential surface of the driving roller 91. And a groove 93 is provided at the position where the above-mentioned damping roller 92 is tangent to the driving roller 91, and a retractable damping cap 920 is installed in the groove 93. Specifically, the damping cap 920 includes a spherical crown-shaped brim 9201, a guide post 9202 and a return spring 9203. Among them, the guide post 9202 stands upright in the groove 93, the return spring 9203 and the brim 9201 are sleeved on the guide post 9202 in sequence, and the brim 9201 is limited on the guide post 9202 and can slide freely, and the brim 9201 matches the damping groove 910.

[0043] In addition, a dial 94 is integrally formed on the outer end surface of the above-mentioned driving roller 91. A number of dial pieces 940 are circumferentially arrayed on the outer circumferential surface of the dial 94. By means of the dial pieces 940, the dial 94 can be easily rotated, and thus the driving roller 91 is rotated.

[0044] As can be seen from the above, the usage method or working principle of a disposable specimen collector provided in this embodiment is as follows:

[0045] First, under endoscopy, the collector is inserted into the affected area of the digestive tract tissue through the biopsy hole of the endoscope.

[0046] Then, by rotating the dial 94 forward, the dial 94 and the driving roller 91 rotate together. The rotation of the driving roller 91 drives the second pivot 8 to rotate. Since the second transmission wheel 5 is fixedly sleeved on the second pivot 8, the second transmission wheel 5 rotates. The rotation of the second transmission wheel 5 drives the first transmission wheel 4 to rotate through the transmission belt 7. The rotation of the first transmission wheel 4 drives the first pivot 6 to rotate. The movable arm 311 is fixedly sleeved on the first pivot 6. Therefore, the first pivot 6 rotates, thereby opening the sampling basket 32, aligning the mouth of the sampling basket 32 with the specimen, and picking up the specimen into the sampling basket 32.

[0047] It should be noted that during the rotation of the driving roller 91, the damping cap 920 will intermittently pop in and out of the groove 93 due to alternately contacting the damping groove 910 and the outer circumferential surface of the driving roller 91; and when the sampling basket 32 is opened and the driving roller 91 is no longer rotated, at this time, the damping cap 920 is aligned with the damping groove 910 on the outer circumferential surface of the driving roller 91, so the damping cap 920 is snapped into the damping groove 910 to limit the free rotation of the driving roller 91 and prevent the sampling basket 32 from closing during the specimen picking process.

[0048] Immediately afterwards, after the sampling basket 32 is opened, medical staff can operate the sampling basket 32 under endoscopy to pick up specimens one by one, which is very convenient.

[0049] Finally, after the picking is completed, turn the dial 94 in the reverse direction. Similarly, the movable arm 311 can be closed towards the fixed arm 310, thereby closing the specimen collection basket 32, and then the specimen collection basket 32 can be taken out, completing the specimen collection.

[0050] In summary, for the disposable specimen recycler provided by the present invention, during use, the recycler is sent into the affected area through the biopsy channel of the endoscope, and then the sampling arm 31 is opened to align the mouth of the sampling basket 32 with the specimen, so as to pick up the specimen into the sampling basket 32. It can enter once under the endoscope to complete the collection and picking of multiple specimens, which is very convenient.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A disposable specimen collector, characterized in that: It includes a handheld part (1), a connecting part (2) and a sampling part (3). The connecting part (2) is connected between the handheld part (1) and the sampling part (3). The sampling part (3) is provided with a sampling arm (31). The sampling arm (31) is connected with a driving part, and the driving part is used to drive the sampling arm (31) to open and close. A sampling net basket (32) for collecting specimens is arranged on the sampling arm (31). The sampling arm (31) includes a fixed arm (310) and a movable arm (311). The fixed arm (310) is fixed to the front end of the connecting part (2), and the movable arm (311) is rotatably connected to the front end of the connecting part (2) through a first pivot (6). The driving part includes a first transmission wheel (4) arranged between the fixed arm (310) and the movable arm (311). The first transmission wheel (4) is fixedly sleeved on the first pivot (6). The connecting part (2) is provided with a hollow inner cavity (201). A second pivot (8) is arranged at one end of the hollow inner cavity (201) far from the first transmission wheel (4). A second transmission wheel (5) is fixedly sleeved on the second pivot (8). The first transmission wheel (4) and the second transmission wheel (5) are in transmission connection, and the second pivot (8) extends out of the hollow inner cavity (201), and a runner assembly (9) is arranged at the end of the second pivot (8). The runner assembly (9) includes a driving roller (91) fixedly sleeved on the end of the second pivot (8) and a damping roller (92) arranged side by side with the driving roller (91). The damping roller (92) is used to limit the self-rotation of the driving roller (91). The damping roller (92) is externally tangent to the driving roller (91), and a telescopic damping cap (920) is arranged at the tangent point of the damping roller (92). A plurality of damping grooves (910) for accommodating the damping cap (920) are circumferentially arranged on the outer circumferential surface of the driving roller (91). The damping cap (920) includes a spherical crown-shaped brim (9201), a guide post (9202) and a return spring (9203). A groove (93) is arranged at the tangent point of the damping roller (92). The guide post (9202) is fixed in the groove (93), and the spring and the brim (9201) are both slidably sleeved on the guide post (9202). A dial (94) is integrally formed on the outer end surface of the driving roller (91), and a plurality of dial pieces (940) are circumferentially arranged on the outer circumferential surface of the dial (94).

2. The disposable specimen collector according to claim 1, characterized in that, The handheld part (1) is provided with a protective soft sleeve.

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