Bronchoscopic sheath

Abstract

The utility model discloses a trachea bronchoscope sheath, concretely relates to bronchoscope technical field, including sheath pipe and the operation handle for controlling sheath pipe activity, including setting on the positioning unit of sheath pipe, it includes the deformable arc plate with a movable end and fixed end, the deformable arc plate is driven and is bent to resist the trachea inner wall, setting on the sheath pipe and is used for the pull fiber of pulling movable end. This trachea bronchoscope sheath controls sheath pipe to go in the bronchial bifurcation through operation handle, reaches the position of needing to make sheath pipe stop subsequently, the deformable arc plate does not bend and will not contact with the bronchial inner wall in this process, then pulls the pull fiber with hand, and the middle part of deformable arc plate is unfolded along the radial and resists the trachea inner wall, makes the front end part fixed, can stabilize front end part, reduces the degree of lens shaking, is more favorable to the observation.

Description

Technical Field

[0001] This utility model relates to the field of bronchoscope technology, and more specifically to a tracheobronchoscope sheath. Background Technology

[0002] A tracheobronchoscopic sheath is a medical device used for tracheobronchoscopic examinations and treatments. It is typically made of a flexible material with a degree of rigidity to provide support during airway insertion.

[0003] According to publication (announcement) number CN210095685U, published (announcement) date 2020-02-21, a bronchoscope sheath is disclosed, including a flexible sheath main tube, in which a guide wire is movably disposed; a fixing and positioning device is sleeved on the outer circumference of the sheath main tube; the fixing and positioning device consists of a positioning block and a locking block; a locking hole is opened in the axial middle of the positioning block, and the front end of the locking block is detachably fixedly connected to the locking hole of the positioning block, and a radially inward compressive force is generated during connection to fix the locking block to the sheath main tube.

[0004] However, in the prior art, including the aforementioned patent, the wound protection tube is fixed in place. As the sheath extends into the bronchus, the inner diameter of the bronchus gradually decreases, which may obstruct the advance of the wound protection tube. Utility Model Content

[0005] The purpose of this invention is to provide a tracheobronchial endoscope sheath to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tracheobronchoscope sheath, including a sheath tube and an operating handle for controlling the movement of the sheath tube, including a positioning unit disposed on the sheath tube, which includes a deformable arc plate having a movable end and a fixed end, the deformable arc plate being driven to bend downward to abut against the inner wall of the trachea.

[0007] The fiber puller is installed on the sheath and used to pull the movable end.

[0008] Preferably, the operating handle is provided with a take-up drum for winding up the fiber, and the operating handle is rotatably provided with a control tube that moves synchronously with the take-up drum.

[0009] Preferably, the deformable arc plate has a notch on the first side facing the sheath and an expansion bladder on the second side.

[0010] Preferably, the device also includes a telescopic airbag located between the movable end and the fixed end, and the inflatable airbag is connected to the telescopic airbag.

[0011] Preferably, the device also includes a drive gear fixedly mounted on the control tube, and a driven gear that meshes with the drive gear is fixedly mounted on the winding drum.

[0012] Preferably, the inner diameter of the sheath is 8-10 mm, and a traction steel wire is inserted inside the sheath.

[0013] In the above technical solution, the tracheobronchial endoscope sheath provided by this utility model has the following beneficial effects: the sheath is controlled by the operating handle to penetrate into the bronchial bifurcation, and then reaches the position where the sheath needs to be stopped. During this process, the deformable arc plate does not bend and will not contact the inner wall of the bronchus. Then, the sheath is pulled by hand, and the middle part of the deformable arc plate expands radially and abuts against the inner wall of the trachea, so that the front end is fixed, which can stabilize the front end, reduce the degree of lens shaking, and make it more conducive to observation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 A three-dimensional schematic diagram of the overall embodiment of this utility model;

[0016] Figure 2 A schematic diagram of the sheath and telescopic airbag structure provided in an embodiment of this utility model;

[0017] Figure 3 A schematic diagram of the control tube and winding drum structure provided in an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the positioning unit structure provided in an embodiment of the present utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Sheath; 2. Fiber pulling tube; 3. Control tube; 31. Drive gear; 32. Driven gear; 33. Rewind drum; 4. Front end; 5. Movable end; 6. Fixed end; 7. Deformable arc plate; 71. Notch; 8. Inflation bladder; 9. Telescopic air bladder; 10. Operating handle. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-4As shown, a tracheobronchial endoscope sheath includes a sheath tube 1 and an operating handle 10 for controlling the movement of the sheath tube 1. It includes a positioning unit disposed on the sheath tube 1, which includes a deformable arc plate 7 having a movable end 5 and a fixed end 6. The deformable arc plate 7 is driven to bend downward to abut against the inner wall of the trachea.

[0023] The fiber optic cable 2 is installed on the sheath 1 and is used to pull the movable end 5.

[0024] Specifically, the end of the sheath 1 extending into the trachea is the anterior end 4. The positioning unit is located on the anterior end 4. The movable end 5 is slidably disposed on the sheath 1, and the fixed end 6 is fixedly disposed on the sheath 1. After the operator inserts the sheath 1 into the patient's bronchus, the operator controls the sheath 1 to penetrate deeper into the bronchial bifurcation through the operating handle 10. Then, when the sheath 1 reaches the position where it needs to be stopped, the operator pulls the pull cable 2 by hand, causing the movable end 5 to move closer to the fixed end 6. The deformable arc plate 7 bends, and the middle part of the deformable arc plate 7 expands radially and abuts against the inner wall of the trachea, thus fixing the anterior end 4. An endoscope is placed on the anterior end 4 to take pictures of the inner wall of the bronchus. The above-mentioned electronic components are all technical common knowledge known to those skilled in the art and will not be described in detail here.

[0025] Furthermore, the inner diameter of the sheath 1 is 8-10 mm, and a traction wire is inserted inside the sheath 1. A biopsy forceps can be installed at the end of the traction wire to remove sputum plugs and other substances from the bronchus.

[0026] In the above technology, the sheath 1 is controlled by the operating handle 10 to penetrate into the bronchial bifurcation and then reach the position where the sheath 1 needs to be stopped. During this process, the deformable arc plate 7 does not bend and will not contact the inner wall of the bronchus. Then, the pull fiber 2 is pulled by hand, and the middle part of the deformable arc plate 7 unfolds radially and abuts against the inner wall of the trachea, so that the front end 4 is fixed, which can stabilize the front end 4, reduce the degree of lens shaking, and make it more conducive to observation.

[0027] As a further embodiment of this utility model, the operating handle 10 is provided with a take-up drum 33 for taking up the fiber 2, and the operating handle 10 is rotatably provided with a control tube 3 that moves synchronously with the take-up drum 33.

[0028] Specifically, it also includes a drive gear 31 fixedly mounted on the control tube 3, and a driven gear 32 fixedly mounted on the take-up drum 33 that meshes with the drive gear 31 for transmission. The fiber 2 is wound onto the take-up drum 33. The operator rotates the control tube 3 to drive the driven gear 32 to rotate, and the drive gear 31 drives the driven gear 32 to rotate, thereby driving the take-up drum 33 to rotate and wind up the fiber 2. The operator can manually rotate the control tube 3 and observe the support status of the deformable arc plate 7 in real time through the camera, and stop in time based on their own feel, relieving the patient's discomfort.

[0029] As another embodiment of this utility model, the deformable arc plate 7 has a notch 71 on the first side facing the sheath tube 1, and an expansion bladder 8 is provided on the second side.

[0030] Specifically, when the movable end 5 is pulled, the deformable arc plate 7 bends along the notch 71, the position of the expansion bladder 8 corresponds to the notch 71, the distance between the movable end 5 and the fixed end 6 gradually shortens, so that the expansion bladder 8 gradually contacts the inner wall of the trachea. By setting the expansion bladder 8, the patient's discomfort can be reduced.

[0031] As a further embodiment of this utility model, a telescopic airbag 9 is also provided, located between the movable end 5 and the fixed end 6, and the inflatable bladder 8 is connected to the telescopic airbag 9.

[0032] Specifically, the two ends of the telescopic airbag 9 are fixedly connected to the movable end 5 and the fixed end 6 respectively. The movable end 5 is pulled by the fiber 2 and continuously approaches the fixed end 6. At this time, the telescopic airbag 9 is compressed and inflated into the expansion bladder 8, causing the expansion bladder 8 to expand.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tracheobronchial endoscope sheath, comprising a sheath tube (1) and an operating handle (10) for controlling the movement of the sheath tube (1), characterized in that, It includes a positioning unit disposed on the sheath (1), which includes a deformable arc plate (7) having a movable end (5) and a fixed end (6), the deformable arc plate (7) being driven to bend downward to abut against the inner wall of the trachea; The fiber (2) is installed on the sheath (1) and is used to pull the movable end (5).

2. The tracheobronchial endoscope sheath according to claim 1, characterized in that, The operating handle (10) is provided with a take-up drum (33) for winding up the fiber (2), and the operating handle (10) is provided with a control tube (3) that moves synchronously with the take-up drum (33).

3. The tracheobronchial endoscope sheath according to claim 1, characterized in that, The deformable arc plate (7) has a notch (71) on the first side facing the sheath (1) and an expansion bladder (8) on the second side.

4. The tracheobronchial endoscope sheath according to claim 1, characterized in that, It also includes a telescopic airbag (9) located between the movable end (5) and the fixed end (6), and the inflatable bladder (8) is connected to the telescopic airbag (9).

5. A tracheobronchial endoscope sheath according to claim 2, characterized in that, It also includes a drive gear (31) fixedly mounted on the control tube (3), and a driven gear (32) that meshes with the drive gear (31) fixedly mounted on the winding drum (33).

6. A tracheobronchoscopic sheath according to claim 1, characterized in that, The inner diameter of the sheath (1) is 8-10 mm, and a traction steel wire is inserted inside the sheath (1).

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