Biopsy set in narrow cavity of biliopancreatic system

Abstract

The utility model discloses a biliopancreatic system narrow cavity internal biopsy suit, which comprises a bougie fed into a pancreatic duct, the bougie comprises a hose, a hole channel is arranged in the hose, the inner diameter of the hole channel is 3mm, a guide wire or biopsy forceps with the outer diameter smaller than or equal to 2mm can pass through the hole channel, and two jaws of the biopsy forceps can be exposed after passing through an outlet of the bougie. The control ends of the two jaws are located at the inlet end of the bougie. The bougie with the guide wire is adopted to enter a narrow area of a biliopancreatic system together, then the bougie is left, and the guide wire is withdrawn from the bougie; the biopsy forceps pass through a narrow area of a biliopancreatic system along a hole channel of the bougie, perforation caused by incorrect entering directions of the biopsy forceps is avoided, jaws of the biopsy forceps are exposed after passing through an outlet of the bougie, the two jaws are controlled by a control end of an inlet end of the bougie to clamp a large pathological tissue block, and then the two jaws and the bougie exit together, so that the biopsy forceps are prevented from penetrating through the biliopancreatic system. The operation difficulty of obtaining the pathological specimen is reduced, the positive rate of pathology is improved, and the cost of a patient is not increased.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a biopsy kit for narrow endocavity of a gallbladder and pancreas system. Background Art

[0002] Inserting a cell brushing instrument through a guidewire to brush the narrow section is a conventional method for obtaining pathological specimens from patients with stenosis. The tissue obtained is tiny and the positive rate is not high. In order to obtain large pieces of tissue, the surgeon will occasionally use micro-biopsy forceps to blindly clamp the tissue after comprehensively evaluating the patient's surgical conditions, but there is a risk of difficulty in reaching the target area and perforation; a few people also use intraoperative direct vision equipment to biopsy the tissue at the narrow part, but the whole operation will be relatively complicated and expensive; when performing biopsy on the bile duct and pancreatic duct, the biopsy forceps of the existing technology often pass the guidewire first, and then use the guide strip or the biopsy forceps with a guidewire channel on the outside of the guidewire to enter the pancreatic and bile duct, which has the following technical defects: perforation is often caused by incorrect entry direction, the operation is difficult, and the biopsy is prone to failure.

[0003] Therefore, how to design a biopsy kit for narrow endocavity of the bile and pancreas system to avoid perforation caused by incorrect entry direction of the biopsy forceps has become an urgent problem to be solved. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a biopsy kit for narrowing the gallbladder and pancreas system to solve at least one of the above technical problems.

[0005] The technical solution of the utility model is: a biopsy kit for narrow cavity of pancreatic and biliary system, comprising a bougie inserted into the pancreatic and bile duct, the bougie comprising a hose, a hole arranged in the hose, the inner diameter of the hole being 3mm, the hole being capable of accommodating a guide wire or a biopsy forceps with an outer diameter of ≤2mm, the two jaws of the biopsy forceps being exposed after passing through the outlet of the bougie, and the control ends of the two jaws being located at the inlet end of the bougie.

[0006] The utility model adopts a bougie (with an inner diameter of the hole of 9Fr) with a guide wire to enter the narrow area of ​​the bile and pancreas system, then leaves the bougie and withdraws the guide wire from the bougie; the biopsy forceps are passed through the narrow area of ​​the bile and pancreas system along the hole of the bougie, thereby avoiding perforation caused by the biopsy forceps entering in the wrong direction, and the jaws of the biopsy forceps are exposed after passing through the outlet of the bougie, and after the two jaws are controlled by the control end at the entrance end of the bougie to clamp a large piece of pathological tissue, the biopsy forceps are withdrawn together with the bougie, thereby reducing the difficulty of obtaining pathological specimens, improving the positive rate of pathology, and not increasing the cost spent by patients.

[0007] Preferably, a marking area is provided on the outer circle of the end of the bougie inserted into the pancreaticobiliary duct, and the marking area is used for observation under fluoroscopy.

[0008] The utility model arranges a marking area on the outer circle of one end of the bougie, and the position of the bougie driven by the guide wire when sent into the pancreatic and bile duct can be observed under perspective, thereby avoiding perforation of the bougie due to incorrect entry direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the bougie and the marking area of ​​the utility model.

[0010] Figure 2 It is a schematic diagram of the installation structure of the biopsy forceps exposing the bougie of the utility model.

[0011] In the figure: 1. bougie; 2. biopsy forceps; 101. marking area; 201. housing; 202. pin; 203. jaws. DETAILED DESCRIPTION

[0012] The utility model is further described below in conjunction with the accompanying drawings.

[0013] See also Figure 1-2 The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0014] Example 1: A biopsy kit for stenosis of the gallbladder and pancreas, referring to Figure 1, including a bougie 1 for inserting into the pancreatic and bile duct, the bougie 1 including a hose, a hole is arranged in the hose, the inner diameter of the hole is 3mm, the hole can accommodate a guide wire or a biopsy forceps 2 with an outer diameter of ≤2mm, the two jaws 203 of the biopsy forceps 2 can be exposed after passing through the outlet of the bougie 1, and the control ends of the two jaws 203 are located at the entrance end of the bougie 1. The utility model uses a bougie with a guide wire (the inner diameter of the hole is 9Fr) to enter the narrow area of ​​the pancreatic and bile duct system together, then leaves the bougie, and withdraws the guide wire from the bougie; the biopsy forceps passes through the narrow area of ​​the pancreatic and bile duct system along the hole of the bougie, avoiding perforation caused by the wrong entry direction of the biopsy forceps, the jaws of the biopsy forceps are exposed after passing through the outlet of the bougie, and the two jaws are controlled by the control end of the entrance end of the bougie to clamp a large piece of pathological tissue, and then withdraw together with the bougie, thereby reducing the difficulty of obtaining pathological specimens, improving the positive rate of pathology, and not increasing the cost of patients.

[0015] Embodiment 2: Based on Embodiment 1, refer to Figure 2 The outer ring of the end of the bougie 1 inserted into the pancreatic and bile duct is provided with a marking area 101, and the marking area 101 is used for observation under fluoroscopy. The utility model adopts a marking area provided on the outer ring of one end of the bougie, and the position of the bougie driven by the guide wire when it is inserted into the pancreatic and bile duct can be observed under fluoroscopy, thereby avoiding perforation of the bougie due to incorrect entry direction.

[0016] Embodiment 3: Based on Embodiment 2, the maximum opening between the two jaws 203 of the biopsy forceps 2 is 5 mm.

[0017] Embodiment 4: Based on Embodiment 1, the two jaws 203 of the biopsy forceps 2 are symmetrically arranged in a "7"-shaped structure, and the vertical rod of the "7"-shaped structure, which is away from one end of the horizontal rod, can rotate around the same pin 202, and the vertical rods of the "7"-shaped structure are all facing the pin 202. The utility model adopts a control end at the entrance end of the bougie to connect the two "7"-shaped structures respectively, and the two "7"-shaped structures rotate around the same pin, and the control end at the entrance end of the bougie can control the two jaws to clamp large pieces of pathological tissue.

[0018] Embodiment 5: Based on Embodiment 4, the biopsy forceps 2 is provided with a housing 201 near the jaws 203, and openings are provided at corresponding positions of the housing 201 and the jaws 203, and the two jaws 203 can be stored in the housing 201 when closed. The utility model adopts a housing to store two jaws, which can facilitate the biopsy forceps to pass through the narrow area of ​​the bile and pancreas system along the channel of the bougie.

[0019] Embodiment 6: Based on embodiment 5, both ends of the pin shaft 202 are fixed on the housing 201 .

[0020] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A biopsy kit for stenosis of the pancreatic and biliary system, comprising a bougie (1) for insertion into the pancreatic and biliary ducts, characterized in that: The bougie (1) comprises a hose, a hole is arranged in the hose, the inner diameter of the hole is 3 mm, a guide wire or a biopsy forceps (2) with an outer diameter of ≤2 mm can pass through the hole, two jaws (203) of the biopsy forceps (2) can be exposed after passing through the outlet of the bougie (1), and the control ends of the two jaws (203) are located at the inlet end of the bougie (1).

2. A biopsy kit for stenosis of the gallbladder and pancreas according to claim 1, characterized in that: The outer circle of the end of the bougie (1) inserted into the pancreatic and bile duct is provided with a marking area (101), and the marking area (101) is used for observation under fluoroscopy.

3. A biopsy kit for stenosis of the gallbladder and pancreas according to claim 2, characterized in that: The maximum opening between the two jaws (203) of the biopsy forceps (2) is 5 mm.

4. The biopsy kit for stenosis of the gallbladder and pancreas according to claim 1, characterized in that: The two jaws (203) of the biopsy forceps (2) are symmetrically arranged in a "7"-shaped structure, and the vertical rod of the "7"-shaped structure, which is away from the end of the horizontal rod, can rotate around the same pin shaft (202), and the vertical rods of the "7"-shaped structure are all facing the pin shaft (202).

5. The biopsy kit for stenosis of the gallbladder and pancreas according to claim 4, characterized in that: The biopsy forceps (2) is provided with a housing (201) near the jaws (203), and openings are provided at corresponding positions of the housing (201) and the jaws (203), so that the two jaws (203) can be stored in the housing (201) when closed.

6. A biopsy kit for stenosis of the gallbladder and pancreas according to claim 5, characterized in that: Both ends of the pin shaft (202) are fixed on the housing (201).

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