Biopsy forceps head assembly passing through bronchoscope and lung cancer tumor sampling method of biopsy forceps head assembly

Abstract

The invention relates to the technical field of biopsy forceps, and discloses a biopsy forceps head assembly passing through a bronchoscope and a lung cancer tumor sampling method thereof.The biopsy forceps head assembly comprises an outer tube with an opening in the tail end, a traction wire is movably arranged in the outer tube in a drawing mode, and the biopsy forceps head assembly further comprises two forceps mouths which are oppositely arranged and can be opened or closed; and the bearing plate is movably arranged in the outer pipe and can move in the axial direction of the outer pipe, and the two clamp mouths are installed on the bearing plate through a swing assembly. According to the biopsy forceps head assembly passing through the bronchoscope, a lung cancer tumor tissue sample can be rapidly clamped through opening and closing of the forceps mouth, and after sampling, the forceps mouth and the sample can be retracted into the outer tube together, so that the sample is prevented from being polluted in the transfer process, and the accuracy of pathological diagnosis is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of biopsy forceps, in particular to a transbronchoscope biopsy forceps head assembly and a method for sampling lung cancer tumors thereof. Background Art

[0002] Lung cancer is a malignant tumor with high morbidity and mortality worldwide. Its early diagnosis and accurate pathological analysis are crucial to improving treatment outcomes and preventing tumors. In clinical practice, bronchoscopic-guided biopsy is one of the important means of diagnosing lung cancer, especially for central lung cancer and certain lesions close to the bronchi. It uses biopsy forceps to obtain tumor tissue samples, making it easier for doctors to perform pathological analysis, identify the type and stage of the tumor, and thus determine the treatment plan.

[0003] However, in actual application, we found that the existing bronchoscope biopsy forceps still have certain shortcomings in actual application: after sampling, the tumor tissue sample is usually directly exposed between the jaws of the existing biopsy forceps. During the transportation process from sampling to pathological detection or storage, the sample is easily contaminated or damaged, which will affect the accuracy of the pathological diagnosis. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies of the prior art, the present invention provides a transbronchoscope biopsy forceps head assembly and a method for sampling lung cancer tumors thereof, which has the advantage of being able to effectively prevent the sample from being contaminated.

[0005] (II) Technical solution In order to achieve the above-mentioned purpose of effectively preventing the sample from being contaminated, the present invention provides the following technical solution: a transbronchoscope biopsy forceps head assembly, comprising an outer tube with an opening at the end, wherein a traction wire is movably drawn inside the outer tube, and further comprising: Two jaws arranged opposite to each other, capable of opening or closing; The bearing plate is movably arranged in the outer tube and can move along the axial direction of the outer tube. The two pliers are mounted on the bearing plate through a swing assembly.

[0006] As a preferred technical solution of the present invention, the swing assembly includes a swing rod, a hinge rod, a driving rod and a pull rod; One end of the swing rod is fixedly connected to the pliers mouth, and the other end is rotatably mounted on the supporting plate. A hinged rod is hinged in the middle of the swing rod, and the other end of the hinged rod is rotatably connected to the end of the driving rod. A pull rod is fixedly mounted on the driving rod, and the other end of the pull rod is connected to a traction assembly after passing through the supporting plate.

[0007] As a preferred technical solution of the present invention, the traction assembly includes a pressing plate, a fixing plate and a supporting spring; The other end of the pull rod passes through the bearing plate and is fixedly connected to a pressing plate, and the end of the pulling wire is installed on the pressing plate to pull the pressing plate to move; The traction wire is also sleeved with a support spring, and the support spring is fixed between the pressure plate and the fixed plate; The fixing plate is fixedly installed in the outer tube.

[0008] As a preferred technical solution of the present invention, an elastic protrusion is formed on the outer peripheral wall of the bearing plate, and the protrusion is movably clamped in an annular groove formed on the inner wall of the outer tube.

[0009] As a preferred technical solution of the present invention, a storage device for storing biogel is also installed in the outer tube, and the storage device is connected to a gel tube, which is buried in the wall of the outer tube and the liquid outlet is exposed at the end of the outer tube.

[0010] As a preferred technical solution of the present invention, the storage device is an annular cabinet fixedly installed in the outer tube, and the gel tube is connected to the annular cabinet.

[0011] As a preferred technical solution of the present invention, an annular piston is movably arranged in the annular cabinet for pumping out the biogel in the annular cabinet.

[0012] As a preferred technical solution of the present invention, a push rod is fixedly installed on the side of the pressure plate facing the annular cabinet, and the end of the push rod passes through the fixed plate and extends into the annular cabinet to push the annular piston to move.

[0013] (III) Beneficial effects Compared with the prior art, the present invention provides a transbronchoscope biopsy forceps head assembly, which has the following beneficial effects: 1. The transbronchoscope biopsy forceps head assembly can quickly clamp lung cancer tumor tissue samples by opening and closing the forceps mouth. After sampling, the forceps mouth and the sample can be retracted into the outer tube together, thereby avoiding contamination of the sample during transportation and ensuring the accuracy of pathological diagnosis.

[0014] 2. After sampling is completed, the bronchoscope biopsy forceps head assembly can immediately release the biogel through the gel tube to seal and protect the tumor sampling wound, effectively reducing the risks of postoperative infection, bleeding, and tumor tissue overflow, and improving the safety of sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the present invention; Figure 3It is an enlarged schematic diagram of the carrying plate part of the present invention; Figure 4 A cross-sectional view of a ring cabinet portion of the present invention; Figure 5 This is a schematic diagram of the present invention after sampling.

[0016] In the figure: 1. outer tube; 2. jaws; 3. swing rod; 4. bearing plate; 5. hinged rod; 6. driving rod; 7. pull rod; 8. pressure plate; 9. traction wire; 10. fixing plate; 11. support spring; 12. raised part; 13. annular groove; 14. push rod; 15. annular cabinet; 16. annular piston; 17. gel tube. DETAILED DESCRIPTION

[0017] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0018] Embodiment 1: See also Figure 1-Figure 5 A transbronchoscope biopsy forceps head assembly comprises an outer tube 1 with an opening at the end, and a traction wire 9 is movably drawn inside the outer tube 1. Figure 1 As shown, two jaws 2 are arranged opposite to each other at the opening at the end of the outer tube 1. The two jaws 2 can be opened or closed to achieve a clamping function for sampling. When used, after the bronchoscope reaches a predetermined position, the outer tube 1 is inserted into the working channel of the bronchoscope, and the jaws 2 are located in the area to be sampled. Then, by opening and closing the jaws 2, lung cancer tumor tissue samples can be quickly clamped.

[0019] like Figure 2 and Figure 3 As shown, a bearing plate 4 is provided in the outer tube 1. In this embodiment, the two jaws 2 are mounted on the bearing plate 4 through a swing assembly. Specifically, the swing assembly includes a swing rod 3, a hinge rod 5, a drive rod 6 and a pull rod 7. Figure 3 As shown, one end of the swing rod 3 is fixedly connected to the jaw 2, and the other end is rotatably mounted on the bearing plate 4. A hinged rod 5 is hingedly connected to the middle of the swing rod 3, and the other end of the hinged rod 5 is rotatably connected to the end of the driving rod 6. A pull rod 7 is fixedly mounted on the driving rod 6, and the other end of the pull rod 7 passes through the bearing plate 4 and is connected to a traction assembly. Figure 2 The drawing shows the tensioned state of the pull rod 7 , at which time the two pliers jaws 2 are closed; when the pull rod 7 is pushed forward, the two pliers jaws 2 can be driven to open through the drive rod 6 and the hinge rod 5 .

[0020] In the present invention, the traction assembly includes a pressure plate 8, a fixing plate 10 and a support spring 11. Figure 2 The other end of the pull rod 7 passes through the bearing plate 4 and is fixedly connected to the pressing plate 8. The end of the traction wire 9 is installed on the pressing plate 8 to pull the pressing plate 8 to move. In addition, a support spring 11 is sleeved on the traction wire 9. The support spring 11 is fixedly arranged between the pressing plate 8 and the fixed plate 10. The fixed plate 10 is fixedly installed in the outer tube 1. Initially, the traction wire 9 is in a pre-tensioned state, and the support spring 11 is slightly compressed by the pressure plate 8, and the two jaws 2 are closed at this time; when sampling is required, the locking of the traction wire 9 is released, and then under the supporting force of the support spring 11, the pressure plate 8 and the pull rod 7 will be pushed forward, thereby opening the two jaws 2; Afterwards, the traction wire 9 is manually pulled to make the pressure plate 8 compress the support spring 11 again, and the two jaws 2 can be closed, thereby completing the clamping and sampling operation; The other end of the traction wire 9 passes through the outer tube 1. A locator such as a hook can be provided as required to keep the locator in a pre-tensioned state. When sampling, the locator can be released.

[0021] In this embodiment, the bearing plate 4 can move in the axial direction of the outer tube 1. Specifically, Figure 2 As shown, an elastic protrusion 12 is formed on the outer peripheral wall of the bearing plate 4, and the protrusion 12 is movably clamped in an annular groove 13 provided on the inner wall of the outer tube 1; When in the pre-tensioned state, when the jaws 2 are opened, and when the sample is pulled again, the elastic protrusion 12 is stuck in the annular groove 13 to maintain the overall stability; After the sampling is completed, the traction wire 9 is pulled forcefully, so that the protrusion 12 can be disengaged from the annular groove 13, and the supporting plate 4 is gradually pulled inward (at this time, the supporting spring 11 is gradually compressed), and at the same time, the forceps mouth 2 and the sample tissue clamped thereon are stored in the outer tube 1, thereby preventing the sample tissue from being contaminated during transportation and ensuring the accuracy of pathological diagnosis.

[0022] Embodiment 2: See also Figure 2 and Figure 4 On the basis of the first embodiment, in this embodiment, a storage device for storing biogel is further installed in the outer tube 1, and the storage device is connected with a gel tube 17, which is buried in the wall of the outer tube 1, and the liquid outlet is exposed at the end of the outer tube 1. After the sampling is completed, the biogel can be released immediately through the gel tube 17 to seal and protect the tumor sampling wound surface, effectively reducing the risks of postoperative infection, bleeding, and tumor tissue overflow, thereby improving the safety of sampling.

[0023] Specifically, the storage is an annular cabinet 15, which is fixedly installed in the outer tube 1, the gel tube 17 is connected to the annular cabinet 15, and the traction wire 9 passes through the center of the annular cabinet 15 without affecting each other.

[0024] In this embodiment, an annular piston 16 is movably disposed in the annular cabinet 15 for pumping out the biogel in the annular cabinet 15. Figure 4 As shown, a push rod 14 is fixedly installed on one side of the pressure plate 8 facing the annular cabinet 15, and the end of the push rod 14 passes through the fixed plate 10 and extends into the annular cabinet 15, and is used to push the annular piston 16 to move, thereby pumping out the biogel; When the traction wire 9 is pulled forcefully to store the forceps mouth 2 and the sample tissue clamped thereon into the outer tube 1, the pressing plate 8 will also push the annular piston 16 to move through the push rod 14, and then synchronously pump out the biogel to seal and protect the tumor sampling wound, effectively reducing the risks of postoperative infection, bleeding, and tumor tissue overflow, and improving the safety of sampling.

[0025] Embodiment three: Based on the first and second embodiments, this embodiment proposes a method for sampling lung cancer tumors, which specifically includes the following steps: Step 1: Make the bronchoscope reach the predetermined position; Step 2: insert the outer tube 1 into the working channel of the bronchoscope, and place the forceps mouth 2 at the area to be sampled; Step 3, loosen the traction wire 9 to open the two pliers mouths 2; Step 4: Gently pull the traction wire 9 to close the two forceps 2 to take tumor samples; Step 5: Pull the traction wire 9 with force to retract the two closed jaws 2 into the outer tube 1; Step 6: discharge the biogel through the gel tube 17 to seal the wound surface at the sampling point.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transbronchoscope biopsy forceps head assembly, comprising an outer tube (1) with an opening at the end, wherein a traction wire (9) is movably drawn inside the outer tube (1), characterized in that: Also includes: Two pliers (2) arranged opposite to each other and capable of opening or closing; A bearing plate (4) is movably arranged in the outer tube (1) and is capable of moving along the axial direction of the outer tube (1); the two pliers (2) are mounted on the bearing plate (4) via a swing assembly.

2. The transbronchoscope biopsy forceps head assembly according to claim 1, characterized in that: The swing assembly comprises a swing rod (3), a hinge rod (5), a drive rod (6) and a pull rod (7); One end of the swing rod (3) is fixedly connected to the jaws (2), and the other end is rotatably mounted on the supporting plate (4). A hinged rod (5) is hingedly connected to the middle of the swing rod (3), and the other end of the hinged rod (5) is rotatably connected to the end of a driving rod (6). A pull rod (7) is fixedly mounted on the driving rod (6), and the other end of the pull rod (7) passes through the supporting plate (4) and is connected to a traction assembly.

3. The transbronchoscope biopsy forceps head assembly according to claim 2, characterized in that: The traction assembly comprises a pressure plate (8), a fixing plate (10) and a support spring (11); The other end of the pull rod (7) passes through the bearing plate (4) and is fixedly connected to a pressing plate (8), and the end of the pulling wire (9) is mounted on the pressing plate (8) to pull the pressing plate (8) to move; The traction wire (9) is also sleeved with a support spring (11), and the support spring (11) is fixed between the pressure plate (8) and the fixing plate (10); The fixing plate (10) is fixedly mounted inside the outer tube (1).

4. The transbronchoscope biopsy forceps head assembly according to claim 3, characterized in that: An elastic protrusion (12) is formed on the outer peripheral wall of the bearing plate (4), and the protrusion (12) is movably clamped in an annular groove (13) provided on the inner wall of the outer tube (1).

5. The transbronchoscope biopsy forceps head assembly according to claim 3 or 4, characterized in that: A storage device for storing biogel is also installed in the outer tube (1), and the storage device is connected to a gel tube (17). The gel tube (17) is buried in the wall of the outer tube (1), and the liquid outlet end is exposed at the end of the outer tube (1).

6. The transbronchoscope biopsy forceps head assembly according to claim 5, characterized in that: The storage device is an annular cabinet (15) fixedly installed in the outer tube (1), and the gel tube (17) is connected to the annular cabinet (15).

7. The transbronchoscope biopsy forceps head assembly according to claim 6, characterized in that: An annular piston (16) is movably arranged in the annular cabinet (15) and is used to pump out the biogel in the annular cabinet (15).

8. The transbronchoscope biopsy forceps head assembly according to claim 7, characterized in that: A push rod (14) is fixedly mounted on one side of the pressure plate (8) facing the annular cabinet (15); the end of the push rod (14) passes through the fixed plate (10) and extends into the annular cabinet (15) to push the annular piston (16) to move.

9. A method for sampling lung cancer tumors, used in a bronchoscopic biopsy forceps head assembly as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Make the bronchoscope reach the predetermined position; S2. Insert the outer tube (1) into the working channel of the bronchoscope and position the jaws (2) at the area to be sampled; S3, loosening the traction wire (9) to open the two jaws (2); S4, gently pull the traction wire (9) to close the two forceps (2) to take tumor samples; S5, pulling the traction wire (9) with force, so that the two closed jaws (2) are retracted into the outer tube (1); S6. The biogel is discharged through the gel tube (17) to seal the wound surface at the sampling point.

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