Endoscopic sampling device integrating brushing inspection and lavage

Abstract

The utility model relates to the technical field of endoscopic sampling, and discloses an endoscopic sampling device integrating brushing inspection and lavaging, which comprises a handheld part, a lavaging solution buffer pool is arranged at the center of the handheld part, a lavaging solution buffer pool input hole is arranged in the handheld part and above the lavaging solution buffer pool, and the lavaging solution buffer pool input hole is communicated with the lavaging solution buffer pool input hole. A lavage fluid input guide pipe is inserted in the lavage fluid buffer pool and the lavage fluid buffer pool input hole, a rotary button is assembled at the top end of the lavage fluid input guide pipe, and a plurality of lavage fluid brush hair end input side holes are formed in the position, close to the bottom end, of the lavage fluid input guide pipe. Pathology can be taken through the cytobrush system and the lavage system at the same time, pathological tissue can be obtained through one-time operation in two modes, lavage is carried out while brushing is carried out, the sampling amount is large, diagnosis is more accurate, part of tissue can be separated out for further examination such as gene sequencing, and next treatment is guided.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscopic sampling, in particular to an endoscopic sampling device integrating brushing and irrigation. Background Art

[0002] Compared with other imaging examination methods (such as gastrointestinal radiography, abdominal ultrasound, CT, MR, nuclear medicine, etc.), endoscopy has the obvious advantage of being able to obtain specimens for further pathological examination. Obtaining tissue, cells, fluid and other specimens through endoscopy is a commonly used clinical diagnostic method, which has important diagnostic value for diseases such as tumors and inflammation. Endoscopic brushing is to use a cell brush to brush pathological tissue for pathological examination. Endoscopic lavage is to inject normal saline into the lesion site and recover the lavage fluid for pathological examination. Brushing and lavage can take samples over a wide area, and specimens can also be obtained from lesions that are inconvenient or even impossible to perform biopsy. Therefore, brushing and lavage make up for the limitations of biopsy to a certain extent.

[0003] At present, cell brushing and lavage are sampled separately through different devices. The sampling device has a single function and needs to be replaced when sampling, which increases the operation time. In addition, when the sampling device is replaced, the endoscope is easily displaced. For lesions that cannot be biopsied (usually the lesions are deep and thin), it is difficult to restore the position of the endoscope. Especially when the bleeding during brushing blocks the endoscopic field of view, it is particularly difficult to restore the position of the endoscope for lavage, which increases the difficulty of operation and the risk of sampling failure for patients. In addition, cell brushing and lavage are sampled separately, the sampling volume is small, and the positive rate is low.

[0004] Therefore, this case aims to provide an endoscopic sampling device that integrates brushing and irrigation to solve the above technical problems. Utility Model Content

[0005] In response to the deficiencies of the prior art, the present invention provides an endoscopic sampling device that integrates brushing and lavage, which solves the problem that the existing cell brushing and lavage are sampled separately by different devices, the sampling device has a single function, and the sampling device needs to be replaced when sampling, which increases the operation time. In addition, when the sampling device is replaced, the endoscope is easily displaced. For such lesions that cannot be biopsied (usually the lesions are deep and thin), it is difficult to restore the position of the endoscope. In particular, when the bleeding from brushing blocks the endoscopic field of view, it is particularly difficult to restore the position of the endoscope for lavage, which increases the difficulty of operation and the risk of sampling failure for patients. In addition, the cell brushing and lavage are sampled separately, the sampling volume is small, and the positive rate is low.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an endoscopic sampling device integrating brushing and irrigation, comprising a handheld part, a lavage fluid buffer tank is opened at the center of the handheld part, an lavage fluid buffer tank input hole is opened in the handheld part and above the lavage fluid buffer tank, an lavage fluid input catheter is inserted into the lavage fluid buffer tank and the lavage fluid buffer tank input hole, a rotating knob is installed at the top of the lavage fluid input catheter, a plurality of lavage fluid brush end input side holes are opened on the lavage fluid input catheter and near the bottom end, and cross-cross bristles are installed on the lavage fluid input catheter and around the plurality of lavage fluid brush end input side holes.

[0007] Preferably, a pull ring is clamped on the rotating knob.

[0008] Preferably, an irrigating fluid inlet tube is installed in the handheld part and located on one side of the irrigating fluid buffer tank inlet hole, and an airbag catheter is installed in the handheld part and located on the other side of the irrigating fluid buffer tank inlet hole, and an airbag is installed at the bottom end of the airbag catheter.

[0009] Preferably, the irrigation fluid inlet tube and the balloon catheter are respectively equipped with a first clip.

[0010] Preferably, the irrigation fluid input conduit is engraved with scales above the cross-shaped bristles, and the bottom end of the irrigation fluid input conduit is provided with an irrigation fluid bristle end input top hole.

[0011] Preferably, an irrigating fluid output conduit is mounted on the handheld portion and located on one side of the irrigating fluid input conduit, the irrigating fluid output conduit has an irrigating fluid output hole, and a second clamp is mounted on the irrigating fluid output conduit and located on one side of the irrigating fluid output hole.

[0012] Preferably, rubber rings are respectively installed between the irrigating fluid input catheter, the irrigating fluid input tube, the balloon catheter, the irrigating fluid output catheter and the handheld part.

[0013] Beneficial effects

[0014] The utility model provides an endoscopic sampling device that integrates brushing and irrigation.

[0015] Beneficial effects:

[0016] 1. Pathology can be obtained simultaneously through the cell brush system and the lavage system. In one operation, pathological tissue can be obtained in two ways. Brushing and lavage at the same time can obtain a large amount of samples, making the diagnosis more accurate. Part of the tissue can also be separated for further gene sequencing and other examinations to guide the next step of treatment.

[0017] 2. Taking pathology samples by rotating the bristles is safer than moving the bristles back and forth, reducing the risk of perforation at the lesion site due to excessive insertion. At the same time, rotating the bristles for examination can obtain more pathological tissue.

[0018] 3. Rotary inspection can be completed by simply turning the rotary knob. When turning the rotary knob, the pull ring and the hand-held part held by the medical staff remain stationary, making the operation safer and more convenient for medical staff.

[0019] 4. The cross-shaped bristles are set to facilitate the brushing of tumor tissue in all directions of the lesion. Since the lesion location, especially the lesion location that cannot be biopsied, is usually long and thin, the internal situation of the lesion cannot be seen under the colonoscopy. The cross-shaped bristles and scale change color every 0.5 cm, which allows the doctor to judge the length of the cell brush entering the lesion location, enhancing the safety of the operation to prevent excessive entry and perforation of the lesion site. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of an endoscopic sampling device integrating brushing and irrigation according to the present invention.

[0021] Figure 2 This is a schematic diagram of the main cross-sectional structure of an endoscopic sampling device that integrates brushing and irrigation as described in the present invention.

[0022] Figure 3 This is a schematic diagram of the main structure of an endoscopic sampling device that integrates brushing and irrigation as described in the present invention.

[0023] Figure 4 For this utility model Figure 2 A schematic diagram of the partially enlarged structure of the endoscopic sampling device integrating brushing and irrigation.

[0024] In the figure: 1-handle; 2-irrigation fluid buffer tank; 3-rubber ring; 4-irrigation fluid buffer tank input hole; 5-second clamp; 6-irrigation fluid input catheter; 7-rotating knob; 8-irrigation fluid brush end input side hole; 9-cross bristles; 10-pull ring; 11-irrigation fluid input tube; 12-balloon catheter; 13-balloon; 14-first clamp; 15-scale; 16-irrigation fluid brush end input top hole; 17-irrigation fluid output catheter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Through the use of wires by those skilled in the art, all electrical components in this case are connected to their corresponding power supplies, and appropriate controllers should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, in which the electrical components are electrically connected in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0027] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0028] Example: Refer to Figure 1-4 There are two holes on the handheld part 1. When in use, the medical staff places the index finger and middle finger of the left hand in the two holes of the handheld part 1 respectively to facilitate holding the sampling device.

[0029] The rubber ring 3 acts as a seal.

[0030] The pull ring 10 is provided with a hole. When in use, the medical staff puts the thumb of the left hand into the hole, and together with the index finger and middle finger located on the hand-held part 1, completes the action of holding and pushing and pulling the sampling device.

[0031] The pull ring 10 and the rotating knob 7 are connected in a movable manner. When in use, the thumb of the left hand is placed in the pull ring 10, and the index finger and middle finger of the left hand are placed in the two holes of the hand-held part 1 respectively. When the rotating knob 7 is turned to brush the tissue, the pull ring 10 and the hand-held part 1 will not rotate. In this way, when the rotating knob 7 is turned, the thumb, index finger and middle finger of the left hand do not need to come out of the pull ring 10 and the hand-held part 1 to complete the rotation, which is more convenient to operate.

[0032] The rotary knob 7 is connected to the irrigating fluid input catheter 6. The handheld portion 1 of the irrigating fluid input catheter 6 is provided with an irrigating fluid buffer tank input hole 4. The front end of the irrigating fluid input catheter 6 is provided with a scale 15 and a cross-shaped brush bristle 9 with intervals of changing colors, as well as an irrigating fluid brush end input side hole 8 and an irrigating fluid brush end input top hole 16;

[0033] During use, the endoscopic brushing and sampling device is aligned with the lesion by adjusting the colonoscope. The pull ring 10 is pushed to extend the cross-shaped bristles 9 and extend them into the lesion. The length of the cross-shaped bristles 9 entering the lesion is determined by the color and scale 15 of the cross-shaped bristles 9. After reaching the designated area, the rotary knob 7 is turned to rotate the cross-shaped bristles 9 in place to brush out tumor tissue. In-place rotation is safer than forward and backward sampling, reducing the risk of perforation of the lesion due to excessive insertion. In addition, during the rotation process, each side of the cross-shaped bristles 9 brushes out tumor tissue, resulting in a larger sampling volume than forward and backward sampling.

[0034] The front end of the irrigation fluid input catheter 6 is provided with a scale 15, which changes color every 0.5 cm. The cross-brush bristles 9 also change color every 0.5 cm, so that the doctor can judge the length of the cross-brush bristles 9 entering the lesion site.

[0035] The cross-cross bristles 9 are arranged in a cross-angled manner, so that the bristles can brush tissues in all directions of the lesion site; the gaps formed between the cross-cross bristles 9 are grid-shaped, compared with the straight gaps formed by ordinary upright bristles, so that the bristles can retain more pathological tissue when they are retracted into the catheter.

[0036] The vent end of the balloon catheter 12 is set to yellow, so that it is not easily confused with the vent end of the lavage fluid input tube 11 which is set to blue when used by medical personnel.

[0037] The balloon catheter 12 is connected to the balloon 13 located within the wall of the irrigating fluid delivery catheter 17 via the handpiece 1. During use, the balloon 13 is aligned with the opening of the lesion, air is pumped into the balloon 13 through its vents, and the corresponding first occluder 14 is closed. This creates a relatively closed area between the irrigating fluid delivery catheter 17 and the lesion, facilitating irrigating the lesion. Furthermore, in special cases, such as when the lesion is too narrow, the balloon 13 can also dilate the lumen before sampling. Once irrigating is complete, the first occluder 14 is opened, and air is withdrawn through the balloon vents, causing the balloon 13 to retract.

[0038] The top end of the irrigation fluid inlet tube 11 is set to be blue, so that it is not easily confused with the vent hole of the air bag 13 which is set to be yellow when used by medical personnel.

[0039] The lavage fluid buffer reservoir 2 is located within the handheld portion 1. The lavage fluid buffer reservoir input hole 4 is an opening in the lavage fluid inlet conduit 6. When the cytobrush is closed, the lavage fluid buffer reservoir input hole 4 does not align with the lavage fluid buffer reservoir 2. When the cytobrush is extended, the lavage fluid buffer reservoir input hole 4 and the lavage fluid buffer reservoir 2 align. At this time, lavage fluid introduced through the lavage fluid inlet tube 11 can pass through the lavage fluid buffer reservoir 2, enter the lavage fluid buffer reservoir input hole 4, and then flow into the lavage fluid inlet conduit 6. The provision of the lavage fluid buffer reservoir 2 disconnects the lavage fluid inlet conduit 6. This allows the cross-shaped bristles 9 to be rotated by the selector knob without rotating the lavage fluid inlet conduit 6. This allows the user to brush tissue while simultaneously injecting lavage fluid, ensuring a stable and safe operation.

[0040] The rear end of the lavage fluid inlet conduit 6 is connected to the rotary knob 7, which is provided with an lavage fluid buffer tank inlet port 4, a scale 15, a lavage fluid bristle end inlet side port 8, a lavage fluid bristle end inlet top port 16, and cross-shaped bristles 9. This allows for the functions of lavage fluid inlet, pushing the bristles, and rotating the bristles to obtain pathological findings.

[0041] The side hole 8 for inputting the irrigating liquid by the bristle end is located on the side of the front end of the irrigating liquid input tube 6, and the top hole 16 for inputting the irrigating liquid by the bristle end is located in front of the front end of the irrigating liquid input tube 6. The side / top hole for inputting the irrigating liquid by the bristle end can disperse the irrigating liquid in the irrigating liquid input tube 6 to different directions of the lesion site, thereby realizing all-round irrigating.

[0042] An airbag 13 is provided within the wall of one side of the lavage fluid output conduit 17, with the airbag 13 at the front end and an lavage fluid output hole 18. During use, the pull ring 10 is pushed to extend the cross-shaped bristles 9 into the designated position of the lesion. Simultaneously, the lavage fluid buffer tank input hole 4 is positioned downwardly in alignment with the lavage fluid buffer tank 2. Air is pumped into the airbag 13 through the vent hole, causing the airbag 13 to seal the lesion. The rotary knob 7 is turned to brush tissue. Lavage fluid is injected into the lesion through the lavage fluid input hole. The fluid enters the lavage fluid buffer tank 2 and enters the lavage fluid input conduit 6. The fluid enters the lesion from different directions through the top / side holes at the end of the lavage fluid brush. The lavage fluid is then withdrawn from the lavage fluid output hole 18, achieving the purpose of lavage. The air in the airbag 13 is withdrawn through the vent hole of the airbag 13. The rotary knob 7 is turned again to remove the pathology. The pull ring 10 is then pulled back to retract the cross-shaped bristles 9, completing the pathology removal process.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An endoscopic sampling device integrating brushing and irrigation, comprising a handheld portion (1), characterized in that: An irrigating fluid buffer pool (2) is provided at the center of the handheld portion (1), an irrigating fluid buffer pool input hole (4) is provided in the handheld portion (1) and above the irrigating fluid buffer pool (2), an irrigating fluid input conduit (6) is inserted into the irrigating fluid buffer pool (2) and the irrigating fluid buffer pool input hole (4), a rotating knob (7) is provided at the top of the irrigating fluid input conduit (6), a plurality of irrigating fluid brush end input side holes (8) are provided on the irrigating fluid input conduit (6) and near the bottom, and cross-cross bristles (9) are provided around the plurality of irrigating fluid brush end input side holes (8) on the irrigating fluid input conduit (6).

2. The endoscopic sampling device integrating brushing and irrigation according to claim 1, characterized in that: A pull ring (10) is clamped on the rotating knob (7).

3. The endoscopic sampling device integrating brushing and irrigation according to claim 1, characterized in that: An irrigating fluid inlet tube (11) is installed in the handheld part (1) and located on one side of the irrigating fluid buffer tank inlet hole (4), and an airbag catheter (12) is installed in the handheld part (1) and located on the other side of the irrigating fluid buffer tank inlet hole (4), and an airbag (13) is installed at the bottom end of the airbag catheter (12).

4. The endoscopic sampling device integrating brushing and irrigation according to claim 3, characterized in that: The lavage fluid inlet tube (11) and the balloon catheter (12) are respectively equipped with a first clamp (14).

5. The endoscopic sampling device integrating brushing and irrigation according to claim 1, characterized in that: A scale (15) is engraved on the irrigating fluid input conduit (6) and above the cross-shaped bristles (9), and an irrigating fluid bristle end input top hole (16) is opened at the bottom end of the irrigating fluid input conduit (6).

6. The endoscopic sampling device integrating brushing and irrigation according to claim 1, characterized in that: An irrigating fluid output conduit (17) is mounted on the handheld portion (1) and located on one side of the irrigating fluid input conduit (6). The irrigating fluid output conduit (17) is provided with an irrigating fluid output hole (18). A second clamp (5) is mounted on the irrigating fluid output conduit (17) and located on one side of the irrigating fluid output hole (18).

7. The endoscopic sampling device integrating brushing and irrigation according to claim 1, characterized in that: Rubber rings (3) are respectively installed between the lavage fluid input catheter (6), the lavage fluid input tube (11), the air bag catheter (12), the lavage fluid output catheter (17) and the handheld part (1).

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