Digestive tract endoscope specimen collecting device

Abstract

The invention discloses a digestive tract endoscope specimen collecting device which comprises a catheter, a collecting barrel is arranged at one end of the catheter, a shearing assembly is arranged in the collecting barrel and comprises a fixing groove formed in the inner side of one end of the collecting barrel, an inner meshing gear is rotationally clamped in the fixing groove, and a plurality of fixing columns are evenly arranged at one end of the collecting barrel. Gears are rotationally clamped on the fixing columns, shearing knives are connected to the outer sides of the gears, the inner meshing gear is meshed with all the gears at the same time, the guide pipe is connected with the inner meshing gear through a control assembly, and a clamping assembly is arranged in the collecting cylinder. According to the specimen cutting and collecting device, the arranged cutting assembly can seal and store a specimen while cutting and collecting the specimen, a first pulling rope is pulled outwards, at the moment, the first pulling rope pulls a control panel connected with the free end of the first pulling rope outwards, a cutting knife shears the specimen together, and the specimen can be directly stored in a collecting cylinder while shearing is completed; at the moment, the clamping assembly is driven to clamp and take out the specimen.

Description

Technical Field

[0001] The present invention relates to the technical field of specimen collection, and more specifically, to a digestive endoscope specimen collection device. Background Art

[0002] Digestive endoscopes refer to a group of devices that directly generate images through the digestive tract or obtain ultrasound or X-ray images of the digestive tract and digestive organs through devices with attached ultrasound and X-rays for the diagnosis and treatment of digestive system diseases. They are classified into upper digestive endoscopes, lower digestive endoscopes, endoscopic retrograde cholangiopancreatography, and endoscopic ultrasound according to the examination site and function.

[0003] After the existing digestive endoscope specimen collection device removes polypectomy specimens inside the digestive tract, it is difficult to collect the polypectomy specimens in a timely manner. Some polypectomy specimens with larger volumes are prone to slipping due to insufficient suction force, thereby affecting the efficiency of specimen sampling by the digestive endoscope and reducing the use effect of the device. Summary of the Invention

[0004] The present invention provides a digestive endoscope specimen collection device to solve the problem that after the existing digestive endoscope specimen collection device removes polypectomy specimens inside the digestive tract, it is difficult to collect the polypectomy specimens in a timely manner. Some polypectomy specimens with larger volumes are prone to slipping due to insufficient suction force, reducing the use effect of the device.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A digestive endoscope specimen collection device includes a catheter. One end of the catheter is provided with a collection cylinder. A cutting component is arranged inside the collection cylinder. The cutting component includes a fixed groove opened on the inner side of one end of the collection cylinder. An internally meshing gear is rotatably clamped in the fixed groove. A plurality of fixed columns are evenly arranged at one end of the collection cylinder. A spur gear is rotatably clamped on the fixed column. A cutting knife is connected to the outside of the spur gear. The internally meshing gear meshes with all the spur gears at the same time. The catheter is connected to the internally meshing gear through a control component. A clamping component is arranged inside the collection cylinder.

[0007] Preferably, the control component includes a pair of guide plates arranged on the inner wall of the collection cylinder. A control plate is slidably clamped between the two guide plates. A rotating cylinder is coaxially connected to the inner side of the internally meshing gear. A spiral groove is opened on the side wall of the rotating cylinder. A sliding button arranged on the outside of the control plate is slidably clamped in the spiral groove.

[0008] Preferably, a plurality of clamping rings are arranged inside the catheter. A first traction rope is jointly clamped in all the clamping rings. A side hole is opened on the side wall of the connection end of the catheter and the collection cylinder. The free end of the first traction rope passes through the side hole and is connected to the control plate.

[0009] Preferably, a pair of guiding strips are provided on the side wall of the catheter. A moving plate is slidably clamped between the two guiding strips. A side groove is further formed on the outer side of the moving plate. The shape of the side groove is the same as the cross-sectional shape of the clamping ring provided on the inner wall of the catheter. A limiting ring is provided at the connection between the catheter and the collection cylinder. One side of the limiting ring is in contact with one side of the moving plate.

[0010] Preferably, the clamping assembly includes a plurality of rotating shafts rotatably clamped on the moving plate. A torsion spring is provided at the hinge joint between the connecting plate and the rotating shaft. The rotating shafts are evenly distributed on the moving plate. A connecting plate and a clamping clip are respectively provided on both sides of the rotating shaft. The winding direction of the torsion spring is the same as the turning direction of the clamping clip approaching the axis of the moving plate. The clamping clip is arc-shaped and is arranged in an outward convex direction.

[0011] Preferably, a plurality of pairs of orienting plates equal in number to the rotating shafts are provided on the moving plate. A guiding groove is formed on each orienting plate. A guiding block is slidably clamped in the guiding groove. The two guiding blocks are connected by a pressing plate. The outer side of the connecting plate is in contact with the pressing plate.

[0012] Preferably, a second towing rope is passed through the free end of the catheter. A plurality of connecting bands are provided at one end of the second towing rope close to the collection cylinder. One end of each connecting band is connected to the inner side of the clamping clip. A plurality of clamping grooves are formed at one end of the catheter close to the collection cylinder. Each pressing plate is clamped in one of the clamping grooves.

[0013] Preferably, a release cavity is provided at the free end of the catheter. The inner diameter of the release cavity is larger than the inner diameter of the collection cylinder. The outer side of the release cavity is connected with a guiding cylinder. The inner diameter of the guiding cylinder is greater than or equal to the inner diameter of the catheter.

[0014] Preferably, a retaining ring is provided on the outer side of the guiding cylinder. A protective cylinder is clamped on the outer side of the retaining ring. A gauze is provided at the bottom opening of the guiding cylinder. A sampling window is formed on the side wall of the protective cylinder.

[0015] Preferably, a connection hole is formed at one end of the catheter close to the release cavity. An air pump is connected to the outside of the connection hole through a pipeline. The outer diameter of the moving plate is equal to the inner diameter of the catheter.

[0016] Principle and beneficial effects of this technical solution:

[0017] (1) In the present invention, the shearing component is provided to seal and preserve the specimen while the device cuts and collects the specimen. When using the device to collect the specimen, first use the air pump connected through the connection hole at one end of the catheter to push the moving plate to one end of the collection cylinder, then move the collection cylinder at one end of the catheter to the position of the specimen to be cut, and then pull the first traction rope outward. At this time, the first traction rope will pull the control board connected to its free end outward. Since the sliding button provided on the outer side of the control board is slidably clamped in the spiral groove opened on the side wall of the rotating cylinder, the rotating cylinder provided with the spiral groove will also rotate synchronously when the control board slides between the two guiding plates. Since the rotating cylinder is coaxially connected to the internal meshing gear, the internal meshing gear will drive all the spur gears to rotate synchronously along the fixed column connected to one end of the collection cylinder during the rotation of the rotating cylinder. The shearing knives connected to the outside of the spur gears will synchronously retract inward, so that the shearing knives jointly shear the specimen. While completing the shearing, the specimen will be directly stored in the collection cylinder. At this time, drive the clamping component to clamp the specimen and take it out.

[0018] (2) The clamping component provided in the present invention can clamp the cut specimen and take it out without using negative pressure suction. When it is necessary to clamp and take out the specimen, pull the second traction rope passing through the free end of the catheter. At this time, multiple connecting bands provided at one end of the second traction rope will synchronously pull the clamp to deflect inward. At this time, the clamp will clamp the specimen. At the same time, the rotating shaft where the clamp is located will drive the connected torsion spring to contract and deflect the connecting plate provided outside the rotating shaft. Since the outside of the connecting plate contacts the pressing plate, when the connecting plate moves, the pressing plate no longer receives the thrust from the connecting plate. At this time, the pressing plate will disengage from its corresponding card slot and release the movement restriction on the moving plate. At this time, the clamp has completed clamping the specimen. At the same time, the pulling force of the second traction rope will drive the moving plate to move along the guiding strip on the side wall of the catheter until the specimen moves to the release cavity for specimen collection.

[0019] (3) The release cavity provided in the present invention can help medical staff collect the collected specimen. When the moving plate and the clamp move to the release cavity, since the inner diameter of the release cavity is larger than the inner diameter of the collection cylinder, the clamp will quickly reset under the action of the torsion spring, so that the specimen clamped by the clamp is released. At this time, the specimen will fall under the action of gravity, and the specimen will fall along the export cylinder to the gauze net provided at the bottom opening of the export cylinder. Then the medical staff can take out the specimen through the sampling window opened on the side wall of the protective cylinder. At the same time, the protective cylinder can also avoid the pollution caused when taking out the specimen, further improving the safety performance of the device. Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of the present invention;

[0021] Figure 2 is the structural schematic diagram after the present invention is sectioned;

[0022] Figure 3 is Figure 2 The enlarged structural schematic diagram of area A in

[0023] Figure 4 The structural schematic diagram of the present invention after partial sectioning and splitting

[0024] Figure 5 is Figure 4 The enlarged structural schematic diagram of area B in

[0025] The reference numerals in the accompanying drawings of the specification include: 1, the first towing rope; 2, the second towing rope; 3, the connecting hole; 4, the catheter; 5, the collecting cylinder; 6, the release cavity; 7, the snap ring; 8, the outlet cylinder; 9, the sampling window; 10, the protective cylinder; 11, the retaining ring; 12, the card slot; 13, the side hole; 14, the limiting ring; 15, the guide plate; 16, the fixed column; 17, the connecting band; 18, the fixed slot; 19, the rotating cylinder; 20, the internal meshing gear; 21, the spiral groove; 22, the clip; 23, the rotating shaft; 24, the pressing plate; 25, the guide block; 26, the connecting plate; 27, the guide bar; 28, the side groove; 29, the orientation plate; 30, the guide groove; 31, the moving plate; 32, the control plate; 33, the spur gear; 34, the cutting knife. Detailed implementation manners

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and implementation manners:

[0027] Embodiment:

[0028] As Figures 1 to 5 shown, the present invention provides a digestive endoscope specimen collecting device, including a catheter 4, one end of the catheter 4 is provided with a collecting cylinder 5, a cutting component is arranged in the collecting cylinder 5, the cutting component includes a fixed slot 18 opened on the inner side of one end of the collecting cylinder 5, an internal meshing gear 20 is rotatably clamped in the fixed slot 18, a plurality of fixed columns 16 are uniformly arranged at one end of the collecting cylinder 5, a spur gear 33 is rotatably clamped on the fixed column 16, a cutting knife 34 is connected to the outside of the spur gear 33, the internal meshing gear 20 is meshed with all the spur gears 33 at the same time, the catheter 4 is connected to the internal meshing gear 20 through a control component, and a clamping component is arranged in the collecting cylinder 5.

[0029] As Figure 1 , Figure 4 and Figure 5 shown, the control component includes a pair of guide plates 15 arranged on the inner wall of the collecting cylinder 5, a control plate 32 is slidably clamped between the two guide plates 15, a rotating cylinder 19 is coaxially connected to the inner side of the internal meshing gear 20, a spiral groove 21 is opened on the side wall of the rotating cylinder 19, and a sliding button arranged on the outside of the control plate 32 is slidably clamped in the spiral groove 21.

[0030] As Figure 1 , Figure 3 andFigure 5 As shown, a plurality of clamping rings 7 are arranged in the conduit 4, and the first traction rope 1 is clamped in all the clamping rings 7. A side hole 13 is opened on the side wall of the connecting end of the conduit 4 and the collecting tube 5, and the free end of the first traction rope 1 passes through the side hole 13 and is connected to the control board 32.

[0031] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a pair of guide bars 27 are provided on the side wall of the conduit 4, a movable plate 31 is slidably clamped between the two guide bars 27, a side groove 28 is also provided on the outer side of the movable plate 31, and the shape of the side groove 28 is the same as the cross-sectional shape of the clamping ring 7 provided on the inner wall of the conduit 4, and a limiting ring 14 is provided at the connection between the conduit 4 and the collecting tube 5, and one side of the limiting ring 14 is in contact with one side of the movable plate 31.

[0032] like Figure 4 and Figure 5 As shown, the clamping assembly includes a plurality of rotating shafts 23 rotatably clamped on a movable plate 31, a coil spring is provided at the hinge between the connecting plate 31 and the rotating shaft 23, the rotating shaft 23 is evenly distributed on the movable plate 31, and a connecting plate 26 and a clamp 22 are respectively provided on both sides of the rotating shaft 23. The winding direction of the coil spring is the same as the direction of the clamp 22 close to the axis of the movable plate 31, and the clamp 22 is arc-shaped and is set in an outward convex direction.

[0033] like Figure 5 As shown, a plurality of pairs of directional plates 29 of the same number as the rotating shaft 23 are arranged on the movable plate 31, and guide grooves 30 are opened on the directional plates 29, and guide blocks 25 are slidably clamped in the guide grooves 30. The two guide blocks 25 are connected by a pressure plate 24, and the outer side of the connecting plate 26 is in contact with the pressure plate 24.

[0034] like Figure 1 , Figure 4 and Figure 5 As shown, a second traction rope 2 is passed through the free end of the catheter 4, and a plurality of connecting belts 17 are arranged at one end of the second traction rope 2 close to the collecting tube 5, and one end of each connecting belt 17 is connected to the inner side of the clamp 22. A plurality of slots 12 are opened at one end of the catheter 4 close to the collecting tube 5, and each pressure plate 24 is clamped in a slot 12.

[0035] The clamping assembly can clamp the cut specimen and take it out without using negative pressure suction. When the specimen needs to be clamped and taken out, the second traction rope 2 passed through the free end of the catheter 4 is pulled. At this time, the multiple connecting belts 17 set at one end of the second traction rope 2 will synchronously pull the clamp 22 to deflect inward. At this time, the clamp 22 will clamp the specimen. At the same time, the rotating shaft 23 where the clamp 22 is located will drive the coil spring connected to it to contract and deflect the connecting plate 26 set on the outer side of the rotating shaft 23. Since the outer side of the connecting plate 26 is in contact with the pressing plate 24, when the connecting plate 26 moves, the pressing plate 24 is no longer subject to the thrust from the connecting plate 26. At this time, the pressing plate 24 will be separated from the card slot 12 where it is located and the movement restriction on the movable plate 31 is released. At this time, the clamp 22 has completed the clamping of the specimen. At the same time, the pulling force of the second traction rope 2 will drive the movable plate 31 to move along the guide strip 27 on the side wall of the catheter 4 until the specimen moves into the release chamber 6 for specimen collection.

[0036] like Figure 1 and Figure 3 As shown, a release chamber 6 is provided at the free end of the catheter 4 , the inner diameter of which is larger than the inner diameter of the collecting tube 5 , and a guide tube 8 is connected to the outer side of the release chamber 6 , the inner diameter of which is larger than or equal to the inner diameter of the catheter 4 .

[0037] like Figure 3 As shown, a baffle ring 11 is arranged on the outside of the guide tube 8, a protective tube 10 is clamped on the outside of the baffle ring 11, a gauze is arranged on the bottom opening of the guide tube 8, and a sampling window 9 is opened on the side wall of the protective tube 10.

[0038] like Figure 1 , Figure 2 and Figure 5 As shown, a connecting hole 3 is opened at one end of the conduit 4 close to the release chamber 6 , and an air pump is connected to the outside of the connecting hole 3 through a pipeline. The outer diameter of the movable plate 31 is equal to the inner diameter of the conduit 4 .

[0039] The release chamber 6 can help medical staff to collect the collected specimens. When the movable plate 31 and the clamp 22 move to the release chamber 6, since the inner diameter of the release chamber 6 is larger than the inner diameter of the collecting tube 5, the clamp 22 will be quickly reset under the action of the coil spring, so that the specimen clamped by the clamp 22 is released. At this time, the specimen will fall under the action of gravity, so that the specimen will fall along the outlet tube 8 to the gauze net set at the bottom opening of the outlet tube 8, and then the medical staff can take out the specimen through the sampling window 9 opened on the side wall of the protective tube 10. At the same time, the protective tube 10 can also avoid contamination caused by taking out the specimen, further improving the safety performance of the device.

[0040] The specific usage and function of this embodiment are as follows:

[0041] In the present invention, the cutting-off component is arranged to perform closed preservation on the specimen while the device cuts and collects the specimen. When using the device to collect the specimen, first, use the air pump connected to one end of the conduit 4 through the connection hole 3 to push the moving plate 31 to one end of the collection cylinder 5. Then, move the collection cylinder 5 at one end of the conduit 4 to the position of the specimen to be cut. Then, the first towing rope 1 can be pulled outwards. At this time, the first towing rope 1 will pull outwards the control plate 32 connected to its free end. Since the sliding button arranged on the outer side of the control plate 32 is slidably clamped in the spiral groove 21 opened on the side wall of the rotating cylinder 19, when the control plate 32 slides between the two guiding plates 15, it will also drive the rotating cylinder 19 provided with the spiral groove 21 to rotate synchronously. Since the rotating cylinder 19 is coaxially connected to the internally meshing gear 20, when the rotating cylinder 19 rotates, the internally meshing gear 20 will drive all the spur gears 33 to rotate synchronously along the fixed column 16 connected to one end of the collection cylinder 5. The cutting-off knives connected to the outer sides of the spur gears 33 will retract inwards synchronously, so that the cutting-off knives jointly cut the specimen. While the cutting is completed, the specimen will be directly stored in the collection cylinder 5. At this time, drive the clamping component to clamp the specimen and take it out.

[0042] The above are only embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A digestive tract endoscopy specimen collection device, characterized in that: The invention comprises a conduit (4), wherein a collecting tube (5) is arranged at one end of the conduit (4), wherein a shearing assembly is arranged inside the collecting tube (5), wherein the shearing assembly comprises a fixing groove (18) opened inside one end of the collecting tube (5), wherein an internal meshing gear (20) is rotatably mounted inside the fixing groove (18), wherein a plurality of fixing columns (16) are evenly arranged at one end of the collecting tube (5), wherein spur gears (33) are rotatably mounted on the fixing columns (16), wherein a shearing knife (34) is connected to the outside of the spur gears (33), wherein the internal meshing gear (20) is meshed with all the spur gears (33) at the same time, wherein the conduit (4) is connected to the internal meshing gear (20) via a control assembly, and wherein a clamping assembly is arranged inside the collecting tube (5).

2. The digestive tract endoscopy specimen collection device according to claim 1, characterized in that: The control assembly comprises a pair of guide plates (15) arranged on the inner wall of the collecting cylinder (5), a control plate (32) is slidably mounted between the two guide plates (15), a rotating cylinder (19) is coaxially connected to the inner side of the internal gear (20), a spiral groove (21) is provided on the side wall of the rotating cylinder (19), and a sliding button arranged on the outer side of the control plate (32) is slidably mounted in the spiral groove (21).

3. The digestive tract endoscopy specimen collection device according to claim 2, characterized in that: A plurality of clamping rings (7) are arranged in the conduit (4), and a first traction rope (1) is clamped in all the clamping rings (7). A side hole (13) is provided on the side wall of the connecting end of the conduit (4) and the collecting tube (5), and the free end of the first traction rope (1) passes through the side hole (13) and is connected to the control panel (32).

4. The digestive tract endoscopy specimen collection device according to claim 3, characterized in that: A pair of guide bars (27) are arranged on the side wall of the conduit (4); a movable plate (31) is slidably clamped between the two guide bars (27); a side groove (28) is also provided on the outer side of the movable plate (31); the shape of the side groove (28) is the same as the cross-sectional shape of a clamping ring (7) arranged on the inner wall of the conduit (4); a limiting ring (14) is arranged at the connection between the conduit (4) and the collecting tube (5); one side of the limiting ring (14) is in contact with one side of the movable plate (31).

5. The digestive tract endoscopy specimen collection device according to claim 4, characterized in that: The clamping assembly comprises a plurality of rotating shafts (23) rotatably clamped on the movable plate (31); a coil spring is arranged at the hinge between the connecting plate (31) and the rotating shaft (23); the rotating shaft (23) is evenly distributed on the movable plate (31); connecting plates (26) and clamps (22) are arranged on both sides of the rotating shaft (23); the winding direction of the coil spring is the same as the direction of rotation of the clamp (22) close to the axis of the movable plate (31); the clamp (22) is arc-shaped and arranged in an outward convex direction.

6. The digestive tract endoscopy specimen collection device according to claim 5, characterized in that: The movable plate (31) is provided with a plurality of pairs of directional plates (29) the same number as the rotating shaft (23), each of the directional plates (29) is provided with a guide groove (30), a guide block (25) is slidably mounted in the guide groove (30), two guide blocks (25) are connected by a pressure plate (24), and the outer side of the connecting plate (26) is in contact with the pressure plate (24).

7. The digestive tract endoscopy specimen collection device according to claim 6, characterized in that: A second traction rope (2) is passed through the free end of the conduit (4); a plurality of connection straps (17) are arranged at one end of the second traction rope (2) close to the collecting tube (5); one end of each connection strap (17) is connected to the inner side of the clamp (22); a plurality of slots (12) are provided at one end of the conduit (4) close to the collecting tube (5); and each of the pressure plates (24) is clamped in one of the slots (12).

8. The digestive tract endoscopy specimen collection device according to claim 7, characterized in that: The free end of the conduit (4) is provided with a release chamber (6), the inner diameter of which is greater than the inner diameter of the collecting tube (5), and the outer side of the release chamber (6) is connected to a guide tube (8), the inner diameter of which is greater than or equal to the inner diameter of the conduit (4).

9. The digestive tract endoscopy specimen collection device according to claim 8, characterized in that: A retaining ring (11) is arranged on the outside of the guide tube (8), a protective tube (10) is clamped on the outside of the retaining ring (11), a gauze is arranged at the bottom opening of the guide tube (8), and a sampling window (9) is opened on the side wall of the protective tube (10).

10. The digestive tract endoscopy specimen collection device according to claim 9, characterized in that: A connecting hole (3) is provided at one end of the conduit (4) close to the release chamber (6); an air pump is connected to the outside of the connecting hole (3) via a pipeline; and the outer diameter of the movable plate (31) is equal to the inner diameter of the conduit (4).

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