Endoscope with sampling function

Abstract

The invention discloses an endoscope with a sampling function. The endoscope comprises a probe part, a connecting part and a sleeve part, the tail end of the probe part is sleeved with a connecting part and is connected with the sleeve part through the connecting part; the probe part comprises a probe main body, an endoscope part, a sampling part, a sampling driving part and a locking ring; the two sampling parts are symmetrically arranged on the left side and the right side of the probe main body; the sampling driving part is embedded in the rear side of the probe main body, and the locking ring is used for fixing the sampling driving part; the control part of the sampling part is connected with the driving part of the sampling driving part, and selection of different sampling parts and control of the specified sampling part can be realized through the sampling driving part. And multi-position sampling and sample isolation can be completed on the same endoscope structure.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and in particular to an endoscope with a sampling function. Background Technology

[0002] Endoscopes, as commonly used clinical instruments for endoscopic observation and treatment, typically require tissue sampling while observing lesions for subsequent pathological examination and diagnosis. Current sampling endoscopes mostly use a single sampling forceps, which often allows for sampling from only one location in practice. When multiple sampling points are needed at different locations or for different suspected lesions, it is usually necessary to change the sampling forceps (multiple advances and retreats), making the overall sampling process inconvenient and inefficient. Furthermore, current technologies often struggle to effectively isolate the obtained samples from the surrounding environment and from samples taken from different locations after sampling, posing a risk of contamination due to sample contact, thus compromising the independence and reliability of the samples. Therefore, there is a need to develop a functional endoscope capable of simultaneous multi-sample sampling. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention provides an endoscope with sampling function, comprising: a probe portion, a connecting portion, and a cannula portion; the tail end of the probe portion is fitted with the connecting portion, which connects to the cannula portion. The probe unit includes a probe body, an endoscope unit, a sampling unit, a sampling drive unit, and a locking ring; there are two sampling units, which are symmetrically arranged on the left and right sides of the probe body; the sampling drive unit is embedded in the rear side of the probe body, and the locking ring is used to fix the sampling drive unit; the control component of the sampling unit is connected to the drive component of the sampling drive unit, and the sampling drive unit can be used to select different sampling units and control a specified sampling unit.

[0004] Optionally, the probe body includes a placement groove, a first rectangular sliding groove, a cylindrical groove, a limiting groove, an upper through groove, a lower through groove, and an annular groove; the placement groove is symmetrically arranged on the left and right sides of the probe body, and extends backward from the front end of the probe body along its axial direction; the inner side of the placement groove is provided with a first rectangular sliding groove extending along the axial direction, and the placement groove and the cylindrical groove are connected through the rectangular sliding groove; a cylindrical groove is provided in the middle of the rear end of the probe body; the limiting groove is provided at the end of the cylindrical groove on the outward side; the upper through groove and the lower through groove are symmetrically arranged on the upper and lower sides of the cylindrical groove.

[0005] Optionally, the sampling unit includes a sampling shell, a sampling cover, and a sampling needle, a first slider, a push-pull chain, a second slider, and a flexible blade connected in sequence. The sampling shell is a hollow shell with a side-extraction mechanism. It has a sampling port at the front end, a rectangular guide block in the middle, a concave limiting block on the inner side of the rear end, and a limiting sliding hole on the lower side. An arc-shaped guide block is provided between the sampling port and the rectangular guide block, and a sliding groove for the flexible blade to pass through is provided between the arc-shaped guide block and the sampling shell. A through hole coaxial with the sampling port is provided on the lower side of the arc-shaped guide block. The second slider is located on the upper side of the rectangular guide block, and the first slider is located on the lower side of the rectangular guide block. A driving slider is inserted into the lower part of the first slider, and the driving slider is slidably inserted inside the limiting sliding hole.

[0006] Optionally, the foremost tip of the limiting sliding hole corresponds to the maximum stroke of the sampling needle.

[0007] Optionally, a pivot is provided between the concave limiting block and the rectangular guide block, and a push-pull chain is threaded between the pivot and the concave limiting block.

[0008] Optionally, the second slider is an L-shaped slider, with the long end of the L-shaped slider positioned on the upper side of the rectangular guide block, and a reset spring positioned between the short end of the L-shaped slider and the rectangular guide block.

[0009] Optionally, the arc-shaped guide block includes a first arc-shaped guide block and a second arc-shaped guide block. The first arc-shaped guide block is disposed inside the sampling shell, and the second arc-shaped guide block is disposed on the sampling cover. The first arc-shaped guide block and the second arc-shaped guide block are symmetrically disposed on both sides of the middle cross section of the sampling shell.

[0010] Optionally, the sampling drive unit includes an irregular drive head, a slide rod, a cylindrical shell, a limiting block, a slip ring, and a thrust spring; the slide rod and the cylindrical shell are sequentially arranged on the right side of the irregular drive head, and the slide rod is slidably inserted inside the cylindrical shell; a slip ring is fixedly arranged on the right side of the slide rod; the thrust spring is sleeved on the outside of the slide rod, with one end of the thrust spring abutting against the inside of the cylindrical shell and the other end abutting against the slip ring; the irregular drive head includes a small-diameter cylinder and a large-diameter crossbeam, with two large-diameter crossbeams arranged on the same side of the small-diameter cylinder, and the dimension between the two large-diameter crossbeams is larger than that of the drive slider, the small-diameter cylinder does not contact the drive slider, and the large-diameter crossbeams can contact the drive slider.

[0011] Compared with the prior art, the present invention achieves the following technical effects: by setting multiple sampling sections in the probe section and cooperating with the sampling drive section to realize the selection and control of the sampling sections, the present invention enables multi-position sampling to be completed on the same endoscope structure. 1. Sample isolation at different locations reduces the risk of contamination: By setting up different sampling points, samples from different locations can be obtained and stored separately during sampling, achieving isolation between samples from different locations and reducing the possibility of contamination caused by cross-contamination of samples, thereby helping to improve sample independence and detection reliability.

[0012] 2. The present invention adopts a rotating sampling unit. When multiple sampling points are required, the operator can select and switch the sampling unit by rotating the unit. This reduces the number of operation steps and makes the sampling process more continuous, thereby simplifying the operation and improving the sampling efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an endoscope with sampling function according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a probe portion of an endoscope with sampling function according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a cross-sectional structure of the probe portion of an endoscope with sampling function according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a probe body in an endoscope with sampling function according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a sampling section in an endoscope with sampling function according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of a sampling shell and sampling cover in an endoscope with sampling function according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the internal structure of the sampling section in an endoscope with sampling function according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of a sampling drive unit in an endoscope with sampling function according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of a locking ring in an endoscope with sampling function according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of an endoscope with sampling function when switching sampling sections, provided in an embodiment of the present invention.

[0014] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0015] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0016] like Figure 1-10 As shown, an embodiment of the present invention provides an endoscope with sampling function, including: a probe part 1, a connecting part 2, and a cannula part 3; the tail end of the probe part 1 is fitted with the connecting part 2, and the cannula part 3 is connected through the connecting part 2. The probe unit 1 includes a probe body 11, an endoscope unit 12, a sampling unit 13, a sampling drive unit 14, and a locking ring 15. There are two sampling units 13, which are symmetrically arranged on the left and right sides of the probe body 11. The sampling drive unit 14 is embedded in the rear side of the probe body 11, and the locking ring 15 is used to fix the sampling drive unit 14. The control component (i.e., the drive slider 138) of the sampling unit 13 is connected to the drive component (i.e., the irregular drive head 141) of the sampling drive unit 14. Different sampling units 13 can be selected and the control of a specified sampling unit 13 can be realized through the sampling drive unit 14.

[0017] Optionally, the probe body 11 is a cylinder with a smooth curved surface at its front end.

[0018] Optional, such as Figure 4 As shown, the probe body 11 includes a placement groove 111, a first rectangular sliding groove 112, a cylindrical groove 113, a limiting groove 114, an upper through groove 115, a lower through groove 116, and an annular groove 117. The placement grooves 111 are symmetrically arranged on the left and right sides of the probe body 11, and the placement grooves 111 extend backward from the front end of the probe body 11 along its axial direction; the inner side of the placement grooves 111 is provided with a first rectangular sliding groove 112 extending along the axial direction, and the placement grooves 111 and the cylindrical grooves 113 are connected through the rectangular sliding grooves 112; the cylindrical grooves 113 are provided in the middle of the rear end of the probe body 11; the limiting groove 114 is provided at the end of the cylindrical groove 113 on the outward side; the upper through grooves 115 and the lower through grooves 116 are symmetrically arranged on the upper and lower sides of the cylindrical grooves 113.

[0019] Optionally, the probe unit 1 may also include an illumination unit 16, which is an LED.

[0020] Optionally, the upper through groove 115 is used to fix the endoscope part 12, and the lower through groove 116 is used to fix the illumination part 16.

[0021] Optionally, when the endoscope section 12 integrates an illumination function, the lower through groove 116 is used to fix the suction device.

[0022] Optionally, the probe body 11 is provided with a locking hole 118 at the position corresponding to the sampling part 13, and the set screw passes through the locking hole 118 to abut against the sampling part 13.

[0023] Optional, such as Figure 5-6 As shown, the sampling unit 13 includes a sampling shell 131, a sampling cover 132, and a sampling needle 133, a first slider 134, a push-pull chain 135, a second slider 136, and a flexible blade 137 connected in sequence. The sampling shell 131 is a hollow shell with a side-extraction mechanism. It has a sampling port 1311 at the front end, a rectangular guide block 1312 in the middle, a concave limiting block 1313 on the inner side of the rear end, and a limiting sliding hole 1314 on the lower side. An arc-shaped guide block is provided between the sampling port 1311 and the rectangular guide block 1312. A sliding groove for the flexible blade 137 to pass through is provided between the arc-shaped guide block and the sampling shell 131. A through hole coaxial with the sampling port 131 is provided on the lower side of the arc-shaped guide block. The second slider 136 is disposed on the upper side of the rectangular guide block 1312, and the first slider 134 is disposed on the lower side of the rectangular guide block 1312; a driving slider 138 is inserted into the lower part of the first slider 134, and the driving slider 138 is slidably inserted into the inner side of the limiting sliding hole 1314.

[0024] Optionally, the sampling needle 133 has barbs at the tip.

[0025] Optionally, the foremost point of the limiting slide hole 1314 corresponds to the maximum stroke of the sampling needle 133. When the drive slider 138 slides to the foremost point of the limiting slide hole 1314, the sampling needle 133 can no longer move outward.

[0026] Optionally, a pivot 139 is provided between the concave limiting block 1313 and the rectangular guide block 1312, and a push-pull chain 135 passes between the pivot 139 and the concave limiting block 1313.

[0027] Optional, such as Figure 7 As shown, the second slider 136 is an L-shaped slider. The long end of the L-shaped slider is located on the upper side of the rectangular guide block 1312, and a reset spring is provided between the short end of the L-shaped slider and the rectangular guide block 1312.

[0028] Optionally, the main body of the sampling shell 131 is rectangular and its front end is curved, and the shape of the sampling cover 132 matches that of the sampling shell 131.

[0029] Optionally, the arc-shaped guide block includes a first arc-shaped guide block 1315 and a second arc-shaped guide block 1321. The first arc-shaped guide block 1315 is disposed inside the sampling shell 131, and the second arc-shaped guide block 1321 is disposed on the sampling cover 132. The first arc-shaped guide block 1315 and the second arc-shaped guide block 1321 are symmetrically disposed on both sides of the middle cross section of the sampling shell 131.

[0030] Optionally, the front end of the sampling shell 131 is curvature matched with the front end of the probe body 11; the external dimensions of the sampling shell 131 are matched with the dimensions of the placement groove 111.

[0031] Optional, such as Figure 8 As shown, the sampling drive unit 14 includes an irregular drive head 141, a slide bar 142, a cylindrical shell 143, a limiting block 144, a slip ring 145, and a thrust spring 146. On the right side of the irregular drive head 141, a slide rod 142 and a cylindrical shell 143 are arranged in sequence. The slide rod 142 is slidably inserted inside the cylindrical shell 143. A slip ring 145 is fixedly arranged on the right side of the slide rod 142. A thrust spring 146 is sleeved on the outside of the slide rod 142. One end of the thrust spring 146 abuts against the inside of the cylindrical shell 143, and the other end abuts against the slip ring 145. The irregular drive head 141 includes a small-diameter column and a large-diameter crossbeam. The two large-diameter crossbeams are located on the same side of the small-diameter column, and the distance between the two large-diameter crossbeams is greater than that between the drive slider 138. The small-diameter column does not contact the drive slider 138, while the large-diameter crossbeams can contact the drive slider 138.

[0032] Optionally, a friction ring 147 is provided between the thrust spring 146 and the slip ring 145. The surface of the friction ring 147 is smooth to reduce sliding friction.

[0033] Optional, such as Figure 9 As shown, the rear end of the probe body 11 is provided with an annular groove 117, and the locking ring 15 is sleeved on the outside of the annular groove 117 (the two are matched in size); the middle of the locking ring 15 is provided with a slide rod through hole 151, and the outside of the slide rod through hole 151 is provided with a wire harness through hole 152.

[0034] Optionally, the locking ring 15 is threaded into the annular groove 117 (not shown).

[0035] Optionally, the probe part 1 also includes a drive structure 17 for rotating and stretching the sampling drive part 14; one implementable structure is a sliding wire with a sleeve, one end of the sliding wire is connected to the end of the sampling drive part 14, and the other end is connected to the handle end, pulling the sliding wire forward or backward realizes the stretching function, and rotating the sliding wire left or right realizes the rotation function.

[0036] The working principle of the sampling unit 13: The sampling drive unit 14 pushes the drive slider 138 to move forward or backward; when the drive slider 138 moves forward, the first slider 134 drives the sampling needle 133 to move forward, and the first slider 134 drives the second slider 136 and the flexible blade 137 to move backward in sync through the push-pull chain 135. At this time, the flexible blade 137 no longer blocks the sampling port 1311, and the sampling needle 133 extends out of the sampling port 1311 to take a sample; when the drive slider 138 moves backward, the first slider 134 drives the sampling needle 133 to move backward, and the first slider 134 drives the second slider 136 and the flexible blade 137 to move forward in sync through the push-pull chain 135. At this time, the sampling needle 133 retracts into the sampling port 1311, and the flexible blade 137 resets and cuts off the sampled tissue and closes the sampling port 1311.

[0037] When the sampling drive unit 14 is not in contact with the drive slider 138, the position of the first slider 134 (or drive slider 138) is maintained by the reset spring (i.e., the flexible blade 137 closes the sampling port 1311).

[0038] The working principle of an endoscope with sampling function: After the endoscope with sampling function is delivered to the designated position, it acquires internal images through the endoscope part 12. By adjusting the sampling drive part 14, the rotation angle and stretching distance of the irregular drive head 141 are controlled. Different sampling parts 13 can be selected by rotating different angles. After selecting the designated sampling part 13, the sampling operation is performed.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An endoscope with sampling function, comprising: The probe section, the connecting section, and the sleeve section are all included. The tail end of the probe section is fitted with the connecting section, which connects to the sleeve section. The probe unit includes a probe body, an endoscope unit, a sampling unit, a sampling drive unit, and a locking ring; there are two sampling units, which are symmetrically arranged on the left and right sides of the probe body; the sampling drive unit is embedded in the rear side of the probe body, and the locking ring is used to fix the sampling drive unit; the control component of the sampling unit is connected to the drive component of the sampling drive unit, and the sampling drive unit can be used to select different sampling units and control a specified sampling unit.

2. The endoscope with sampling function as described in claim 1, characterized in that, in, The probe body includes a placement groove, a first rectangular sliding groove, a cylindrical groove, a limiting groove, an upper through groove, a lower through groove, and an annular groove; The placement slots are symmetrically arranged on the left and right sides of the probe body, and extend backward from the front end of the probe body along its axis. The inner side of the placement slot is provided with a first rectangular sliding groove extending along the axis, which connects the placement slot and the cylindrical slot. A cylindrical slot is provided in the middle of the rear end of the probe body. A limiting slot is provided at the end of the cylindrical slot on the outward side. The upper through slot and the lower through slot are symmetrically arranged on the upper and lower sides of the cylindrical slot.

3. The endoscope with sampling function as described in claim 1, characterized in that, The sampling unit includes a sampling shell, a sampling cover, and a sampling needle, a first slider, a push-pull chain, a second slider, and a flexible blade connected in sequence. The sampling shell is a hollow shell with a side-extraction mechanism. It has a sampling port at the front end, a rectangular guide block in the middle, a concave limiting block on the inner side of the rear end, and a limiting sliding hole on the lower side. An arc-shaped guide block is provided between the sampling port and the rectangular guide block, and a sliding groove for a flexible blade to pass through is provided between the arc-shaped guide block and the sampling shell. A through hole coaxial with the sampling port is provided on the lower side of the arc-shaped guide block. The second slider is located on the upper side of the rectangular guide block, and the first slider is located on the lower side of the rectangular guide block; a driving slider is inserted into the lower part of the first slider, and the driving slider is slidably inserted inside the limiting sliding hole.

4. The endoscope with sampling function as described in claim 3, characterized in that, in, The front end of the limiting sliding hole corresponds to the maximum stroke of the sampling needle.

5. The endoscope with sampling function as described in claim 3, characterized in that, in, A pivot is provided between the concave limiting block and the rectangular guide block, and a push-pull chain is threaded between the pivot and the concave limiting block.

6. The endoscope with sampling function as described in claim 3, characterized in that, in, The second slider is an L-shaped slider, with its long end positioned on the upper side of the rectangular guide block, and a reset spring positioned between the short end of the L-shaped slider and the rectangular guide block.

7. The endoscope with sampling function as described in claim 3, characterized in that, in, The arc-shaped guide block includes a first arc-shaped guide block and a second arc-shaped guide block. The first arc-shaped guide block is disposed inside the sampling shell, and the second arc-shaped guide block is disposed on the sampling cover. The first arc-shaped guide block and the second arc-shaped guide block are symmetrically disposed on both sides of the middle cross section of the sampling shell.

8. The endoscope with sampling function as described in claim 1, characterized in that, in, The sampling drive unit includes an irregular drive head, a slide bar, a cylindrical shell, a limit block, a slip ring, and a thrust spring; On the right side of the irregular drive head, there are a slide rod and a cylindrical shell arranged in sequence. The slide rod is slidably inserted inside the cylindrical shell. A slip ring is fixedly installed on the right side of the slide rod. A thrust spring is sleeved on the outside of the slide rod, with one end of the thrust spring abutting against the inside of the cylindrical shell and the other end abutting against the slip ring. The irregular drive head includes a small-diameter cylinder and a large-diameter crossbeam. The two large-diameter crossbeams are located on the same side of the small-diameter cylinder, and the distance between the two large-diameter crossbeams is greater than that between the drive slider. The small-diameter cylinder does not contact the drive slider, while the large-diameter crossbeams can contact the drive slider.

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