Digestive tract biopsy sample collection device

Abstract

The invention discloses a digestive tract biopsy sample collecting device which comprises a connecting hose, a connecting rope is slidably mounted in the connecting hose, a connector is fixedly connected to the upper end of the connecting hose, a threaded connector is mounted in the connector in a threaded mode, and a collecting bottom plate is fixedly connected to the upper end of the threaded connector. An arc-shaped bent pipe is fixedly connected to the upper surface of the collecting bottom plate, a collecting biting head is arranged above the collecting bottom plate, a supporting frame is fixedly connected to the inner wall of the collecting biting head, connecting rings are fixedly connected to the other two ends of the supporting frame, and the arc-shaped bent pipe is sleeved with the connecting rings. The collecting bottom plate, the collecting bite head and the connecting hose are designed to be detachable, the collecting bottom plate, the collecting bite head and the connecting hose are separated, the connecting hose is collected to be independently disinfected, cleaned and reused, the collecting bottom plate and the collecting bite head can be directly discarded after samples are taken out due to excessive internal components, and the biopsy sampling cost is reduced.

Description

Technical Field

[0001] The present invention relates to, and in particular to, a device for collecting digestive tract biopsy samples. Background Art

[0002] Digestive tract biopsy is a diagnostic technique that obtains samples of digestive tract mucosal tissue through an endoscope for pathological analysis, mainly used to identify the nature of lesions (such as inflammation, benign or malignant tumors), and its core value lies in providing key evidence for early cancer screening and treatment plan formulation.

[0003] For example, a device for taking samples of digestive tract tumors for biopsy disclosed in Chinese Patent Publication No. CN119498902A includes a cylinder body, a driving component is provided on the cylinder body, and forceps beaks are symmetrically provided on the driving component. It also includes a pump component and a communication module. Extension plates are slidably fitted on both sides of the forceps beaks, and hoses are provided inside the forceps beaks. Permanent magnets are symmetrically provided on the outer side walls of the hoses. One end of any one hose away from the pump component is provided with a collection component. The collection component includes an elastic tube. One end of the elastic tube is communicated with the adjacent hose, and the other end of the elastic tube is communicated with a sampling needle. A one-way valve is provided at the communication part between the hose and the elastic tube, and an elastic material baffle is provided at the communication part between the elastic tube and the sampling needle. The elastic modulus of the baffle and the hose is greater than that of the elastic tube. The sampling needle is slidably fitted with the forceps beak. A number of elastic material wire meshes are provided inside the elastic tube, and the wire meshes are all in a wavy shape. This invention is used to adjust the device according to the shape, size and location of the patient's cancer, so that the device can adapt to different sampling scenarios. This patent has the following problems:

[0004] Most existing biopsy forceps often need to be reused. The volume of their forceps mouths is small, and the internal space is difficult to clean manually, resulting in a large amount of time required for cleaning and disinfection. And disposable biopsy forceps are expensive, which will lead to high detection and sampling prices. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for collecting digestive tract biopsy samples to solve the problems presented in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A device for collecting digestive tract biopsy samples includes a connecting hose. A connecting cord is slidably installed inside the connecting hose. The upper end of the connecting hose is fixedly connected with a connecting head. A threaded joint is installed inside the connecting head by thread. The upper end of the threaded joint is fixedly connected with a collecting bottom plate. An arc-shaped bent pipe is fixedly connected to the upper surface of the collecting bottom plate. A collecting bite head is arranged above the collecting bottom plate. A support frame is fixedly connected to the inner wall of the collecting bite head. The other two ends of the support frame are both fixedly connected with connecting rings. The connecting rings are sleeved on the arc-shaped bent pipe. A limiting slider is fixedly connected inside one of the connecting rings. A thin cord is fixedly connected to the lower end of the limiting slider. The thin cord is connected to the connecting cord through a connecting mechanism.

[0007] Preferably, a first grip ring is fixedly connected to the lower end of the connecting hose. A sliding tube is fixedly connected below the first grip ring. A plug post is slidably installed in the sliding tube, and the upper end of the plug post is fixedly connected to a connecting cord.

[0008] Preferably, a gripping head is fixedly connected to the lower end of the plug post. A limiting post is fixedly connected above the gripping head. An avoidance hole is formed in the first grip ring, and the avoidance hole cooperates with the limiting post.

[0009] Preferably, the connecting mechanism includes a first connecting head and a rotating grip. The lower surface of the first connecting head is fixedly connected to the connecting cord, and a first threaded hole is formed in the upper surface of the first connecting head.

[0010] Preferably, the lower end of the thin cord is fixedly connected to the rotating grip. A first threaded stud is fixedly connected below the rotating grip, and the first threaded stud is in threaded cooperation with the first threaded hole.

[0011] Preferably, a limiting sliding groove is formed in the arc-shaped bent pipe. The limiting sliding groove cooperates with the limiting sliding block. A through hole is formed in the collecting bottom plate, and the through hole is internally communicated with the limiting sliding groove. The thin cord passes through the collecting bottom plate through the through hole.

[0012] Preferably, a return spring is sleeved on the arc-shaped bent pipe, and both ends of the return spring are fixedly connected to the collecting bottom plate and the connecting ring respectively.

[0013] Preferably, a limiting head is fixedly connected to the upper end of the arc-shaped bent pipe.

[0014] Preferably, collecting bite teeth are fixedly connected to the upper surface of the collecting bottom plate near the edge. A collecting bite groove is formed below the collecting bite head, and the collecting bite teeth cooperate with the collecting bite groove.

[0015] Preferably, a tooth groove is formed on the outer wall of the collecting bottom plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. By designing the collecting bottom plate, the collecting bite head and the connecting hose to be detachable, separating the collecting bottom plate, the collecting bite head and the connecting hose, and storing the connecting hose for separate disinfection, cleaning and reuse, while the collecting bottom plate and the collecting bite head can be directly discarded after taking samples due to too many internal components, reducing the biopsy sampling cost.

[0018] 2. By making the arc-shaped bent pipe integrally arc-shaped, when the collecting bite head moves upward, it will move in an arc shape. At this time, the collecting bite head is separated from the collecting bottom plate to form a mouth shape. When pulling the collecting bite head downward to reset, the collecting bite groove and the collecting bite teeth cooperate with each other to bite off the diseased tissue inside the patient's digestive tract, facilitating the removal of the diseased tissue inside the patient's digestive tract.

[0019] 3. In the unused state, the limit post can abut against the first grip ring to prevent the gripping head from approaching the first grip ring, thereby avoiding the accidental opening of the collection bit under the push of the return spring during the insertion of the device, which may cause the collection groove or collection teeth to scratch the inner wall of the patient's digestive tract. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 is a sectional view of the present invention;

[0022] Figure 3 is a schematic diagram of the connecting hose structure of the present invention;

[0023] Figure 4 is a schematic diagram of the collection bottom plate structure of the present invention;

[0024] Figure 5 is a schematic diagram of the collection bit structure of the present invention.

[0025] In the figure: 1, connecting hose; 101, connecting head; 102, first grip ring; 103, avoidance hole; 104, sliding tube; 105, inserting post; 106, gripping head; 107, limit post; 108, connecting cord; 109, first connecting head; 110, first threaded hole; 2, collection bottom plate; 201, arc-shaped bend tube; 202, return spring; 203, limit sliding groove; 204, limit head; 205, collection teeth; 206, tooth groove; 207, threaded joint; 3, collection bit; 301, collection groove; 302, support frame; 303, connecting ring; 304, limit slider; 305, thin cord; 306, rotating grip; 307, first threaded stud head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] As Figures 1-5 shown, the present invention has the following specific embodiments.

[0028] Embodiment 1

[0029] A digestive tract biopsy sample collection device includes a connecting hose 1. A connecting cord 108 is slidably installed inside the connecting hose 1. The upper end of the connecting hose 1 is fixedly connected with a connecting head 101. A threaded joint 207 is installed inside the connecting head 101 by thread. The upper end of the threaded joint 207 is fixedly connected with a collection bottom plate 2. An arc-shaped bend pipe 201 is fixedly connected to the upper surface of the collection bottom plate 2. A collection bite head 3 is arranged above the collection bottom plate 2. A support frame 302 is fixedly connected to the inner wall of the collection bite head 3. Connecting rings 303 are fixedly connected to the other two ends of the support frame 302. The connecting rings 303 are sleeved on the arc-shaped bend pipe 201. A limiting slider 304 is fixedly connected inside one of the connecting rings 303. A thin cord 305 is fixedly connected to the lower end of the limiting slider 304. The thin cord 305 is connected to the connecting cord 108 through a connecting mechanism.

[0030] In this embodiment, the connecting hose 1 is inserted into the digestive tract through an endoscope. Then, the collection bottom plate 2 and the collection bite head 3 are assembled into a collection assembly and transported to the lesion site. The connecting cord 108 is connected to the thin cord 305 through a connecting mechanism. The extension and retraction of the thin cord 305 are controlled by using the connecting cord 108. The thin cord 305 is connected to the limiting slider 304, and the limiting slider 304 is fixed to the collection bite head 3 through the connecting ring 303 and the support frame 302. Therefore, the extension and retraction of the thin cord 305 can control the movement of the collection bite head 3. The connecting ring 303 is sleeved on the arc-shaped bend pipe 201. Since the arc-shaped bend pipe 201 is arc-shaped as a whole, when the collection bite head 3 moves upward, it will move in an arc. At this time, the collection bite head 3 is separated from the collection bottom plate 2 to form a mouth shape, and the side opening fits the digestive tract lesion site, which can avoid adjusting the angle of the device. Then, pulling the thin cord 305 drives the collection bite head 3 to move downward, and the collection bite head 3 and the collection bottom plate 2 will close again, thereby biting off the tissue at the lesion site and storing it inside the collection bite head 3. At this time, the device can be withdrawn to complete the collection of the sample. The threaded joint 207 is in threaded cooperation with the connecting head 101. Later, the threaded joint 207 can be directly unscrewed from the connecting head 101, and the collection bottom plate 2 and the collection bite head 3 can be disassembled separately, which is convenient for later removing the tissue sample stored inside the collection bite head 3. Secondly, the remaining connecting hose 1 is easy to clean and can be reused. The collection bottom plate 2 and the collection bite head 3, which are difficult to clean, are disposable tools. Separating and discarding them can effectively reduce costs.

[0031] Embodiment 2

[0032] At the lower end of the connecting hose 1, a first grip ring 102 is fixedly connected. Below the first grip ring 102, a sliding tube 104 is fixedly connected. An inserting post 105 is slidably installed in the sliding tube 104. The upper end of the inserting post 105 is fixedly connected to a connecting cord 108. The lower end of the inserting post 105 is fixedly connected to a gripping head 106. Above the gripping head 106, a limiting post 107 is fixedly connected. An avoidance hole 103 is formed in the first grip ring 102. The avoidance hole 103 cooperates with the limiting post 107. The connecting mechanism includes a first connecting head 109 and a rotating grip 306. The lower surface of the first connecting head 109 is fixedly connected to the connecting cord 108. A first threaded hole 110 is formed in the upper surface of the first connecting head 109. The lower end of a thin cord 305 is fixedly connected to the rotating grip 306. Below the rotating grip 306, a first threaded stud 307 is fixedly connected. The first threaded stud 307 is in threaded cooperation with the first threaded hole 110.

[0033] In this embodiment, by holding the gripping head 106, the inserting post 105 can be driven to move. The movement of the inserting post 105 can drive the connecting cord 108 to move, thereby realizing the stretching of the connecting cord 108. In the unused state, the limiting post 107 can abut against the first grip ring 102 to prevent the gripping head 106 from approaching the first grip ring 102. By rotating the gripping head 106, the limiting post 107 can be driven to align the limiting post 107 with the avoidance hole 103. At this time, the limiting post 107 can be inserted into the avoidance hole 103 to realize the extension of the connecting cord 108. At this time, the collection bite head 3 will be separated from the collection bottom plate 2 under the push of the return spring 202. The first threaded hole 110 is in threaded cooperation with the first threaded stud 307, thereby realizing the connection between the connecting cord 108 and the thin cord 305.

[0034] Embodiment 3

[0035] A limiting chute 203 is formed in the arc-shaped bent pipe 201. The limiting chute 203 cooperates with the limiting slider 304. A through hole is formed in the collection bottom plate 2. The through hole is internally communicated with the limiting chute 203. The thin cord 305 passes through the collection bottom plate 2 through the through hole. A return spring 202 is sleeved on the arc-shaped bent pipe 201. Two ends of the return spring 202 are respectively fixedly connected to the collection bottom plate 2 and the connecting ring 303. A limiting head 204 is fixedly connected to the upper end of the arc-shaped bent pipe 201. Collection bite teeth 205 are fixedly connected to the upper surface of the collection bottom plate 2 near the edge. A collection bite groove 301 is formed in the lower surface of the collection bite head 3. The collection bite teeth 205 cooperate with the collection bite groove 301. Tooth grooves 206 are formed in the outer wall of the collection bottom plate 2.

[0036] In this embodiment, through the mutual cooperation of the limit chute 203 and the limit slider 304, the collection bite head 3 can be restricted to slide up and down only along the arc-shaped bend pipe 201, avoiding the rotation of the collection bite head 3 along the arc-shaped bend pipe. The limit head 204 can prevent the connection ring 303 from moving out of the arc-shaped bend pipe 201. The return spring 202 can provide a certain thrust for the connection ring 303. The tooth groove 206 facilitates the rotation of the collection bottom plate 2 by using tools such as a wrench, facilitating the separation of the collection bottom plate 2 from the connection head 101. The collection bite teeth 205 and the collection bite grooves 301 cooperate with each other to facilitate biting off the diseased tissue sample.

[0037] The working principle and usage process of the present invention: When in use, the connection hose 1 needs to be conveyed to the inside of the patient's digestive tract through an endoscope. The collection bottom plate 2 and the collection bite head 3 are controlled by the connection hose 1 to the position of the diseased part of the patient's digestive tract. Hold the gripping head 106 and drive the limit post 107 to rotate so that the limit post 107 aligns with the avoidance hole 103. At this time, control the gripping head 106 to approach the first grip ring 102. The return spring 202 can provide a certain thrust for the connection ring 303. The connection ring 303 will drive the collection bite head 3 to move upward under the thrust. At this time, a certain angle and opening will be formed between the collection bite head 3 and the collection bottom plate 2. Then, move the gripping head 106 downward to drive the connection cord 108 to move downward. The downward movement of the connection cord 108 can drive the collection bite head 3 to move downward through the thin cord 305 and the connection ring 303, so that the collection bite head 3 closes with the collection bottom plate 2 again. Furthermore, by using the cooperation between the collection bite groove 301 and the collection bite teeth 205, the diseased tissue inside the patient's digestive tract is bitten off and stored in the internal cavity of the collection bite head 3. At this time, the device can be withdrawn from the endoscope. Then, the threaded joint 207 is unscrewed from the inside of the connection head 101, and at the same time, the first threaded stud 307 is unscrewed from the inside of the first threaded hole 110, and the collection bottom plate 2, the collection bite head 3 and the connection hose 1 can be separated. The connection hose 1 is taken in for separate disinfection and cleaning for repeated use, while the collection bottom plate 2 and the collection bite head 3 can be directly discarded due to too many internal components after taking out the sample.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A digestive tract biopsy sample collection device, comprising a connecting hose (1), characterized in that: A connecting rope (108) is slidably installed inside the connecting hose (1). The upper end of the connecting hose (1) is fixedly connected with a connecting head (101). A threaded joint (207) is installed inside the connecting head (101) by means of internal threads. The upper end of the threaded joint (207) is fixedly connected with a collecting base plate (2). An arc-shaped bent pipe (201) is fixedly connected to the upper surface of the collecting base plate (2). A collecting bite head (3) is arranged above the collecting base plate (2). A support frame (302) is fixedly connected to the inner wall of the collecting bite head (3). Connecting rings (303) are fixedly connected to the other two ends of the support frame (302). The connecting rings (303) are sleeved on the arc-shaped bent pipe (201). A limiting slider (304) is fixedly connected inside one of the connecting rings (303). A thin wire rope (305) is fixedly connected to the lower end of the limiting slider (304). The thin wire rope (305) is connected to the connecting rope (108) through a connecting mechanism.

2. The digestive tract biopsy sample collection device according to claim 1, characterized in that: A first grip ring (102) is fixedly connected to the lower end of the connecting hose (1). A sliding pipe (104) is fixedly connected to the lower surface of the first grip ring (102). A plug post (105) is slidably installed inside the sliding pipe (104). The upper end of the plug post (105) is fixedly connected to the connecting rope (108).

3. The digestive tract biopsy sample collection device according to claim 2, wherein: A gripping head (106) is fixedly connected to the lower end of the plug post (105). A limiting post (107) is fixedly connected to the upper surface of the gripping head (106). An avoidance hole (103) is formed inside the first grip ring (102). The avoidance hole (103) cooperates with the limiting post (107).

4. The digestive tract biopsy sample collection device according to claim 1, characterized in that: The connecting mechanism includes a first connecting head (109) and a rotating grip (306). The lower surface of the first connecting head (109) is fixedly connected to the connecting rope (108). A first threaded hole (110) is formed on the upper surface of the first connecting head (109).

5. The digestive tract biopsy sample collection device according to claim 4, wherein: The lower end of the thin wire rope (305) is fixedly connected to the rotating grip (306). A first threaded stud head (307) is fixedly connected to the lower surface of the rotating grip (306). The first threaded stud head (307) is in threaded cooperation with the first threaded hole (110).

6. The digestive tract biopsy sample collection device according to claim 1, characterized in that: A limiting sliding groove (203) is formed inside the arc-shaped bent pipe (201). The limiting sliding groove (203) cooperates with the limiting slider (304). A through hole is formed inside the collecting base plate (2). The through hole is internally communicated with the limiting sliding groove (203). The thin wire rope (305) passes through the collecting base plate (2) through the through hole.

7. The digestive tract biopsy sample collection device according to claim 1, characterized in that: A return spring (202) is sleeved on the arc-shaped bent pipe (201). The two ends of the return spring (202) are respectively fixedly connected to the collecting base plate (2) and the connecting ring (303).

8. The digestive tract biopsy sample collection device according to claim 1, wherein: A limiting head (204) is fixedly connected to the upper end of the arc-shaped bent pipe (201).

9. The digestive tract biopsy sample collection device according to claim 1, wherein: Collecting bite teeth (205) are fixedly connected to the upper surface of the collecting base plate (2) near the edge. A collecting bite groove (301) is formed on the lower surface of the collecting bite head (3). The collecting bite teeth (205) cooperate with the collecting bite groove (301).

10. The digestive tract biopsy sample collection device according to claim 1, wherein: Tooth grooves (206) are formed on the outer wall of the collecting base plate (2).

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