A fiberoptic bronchoscope

Abstract

The present invention discloses a fiber bronchoscope, comprising a guide tube and a fiber bronchoscope body, wherein the fiber bronchoscope body is fixedly installed on the inner side of the guide tube, and the lens of the fiber bronchoscope body is located at the guide end of the guide tube; the outer wall of the guide end of the guide tube is provided with circumferentially distributed clamping jaws, the clamping jaws are hinged to the guide tube, and a tightening spring is provided between the inner wall of the clamping jaw and the guide end of the guide tube, wherein one end of the tightening spring is fixedly connected to the inner wall of the clamping jaw, and the other end is fixedly connected to the outer wall of the guide end of the guide tube; the guide end of the guide tube is sleeved with a clamping jaw driving mechanism; when the lens of the fiber bronchoscope body finds a foreign body in the bronchus, the present invention can effectively wrap and clamp larger or firmly embedded foreign bodies and remove them from the human body.

Description

Technical Field

[0001] The invention belongs to the field of medical instruments, and in particular relates to a fiber bronchoscope. Background Art

[0002] At present, in clinical practice, foreign bodies in the bronchi are often removed by fiberoptic bronchoscope. However, due to the small diameter of the biopsy channel of the fiberoptic bronchoscope, the biopsy forceps or foreign body forceps used can only be small, and there is nothing to do for large or firmly embedded foreign bodies. In the case of a last resort, surgery has to be used, which causes greater trauma to the patient and increases the workload of the doctor. Summary of the invention

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a fiber bronchoscope that solves the technical problems raised by the background technology.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A fiber bronchoscope comprises a guide tube and a fiber bronchoscope body, wherein the fiber bronchoscope body is fixedly mounted inside the guide tube, and a lens of the fiber bronchoscope body is located at the guide end of the guide tube;

[0006] The outer wall of the guide end of the guide tube is provided with circumferentially distributed clamping jaws, the clamping jaws are hinged to the guide tube, and a tightening spring is provided between the inner wall of the clamping jaw and the guide end of the guide tube, wherein one end of the tightening spring is fixedly connected to the inner wall of the clamping jaw, and the other end is fixedly connected to the outer wall of the guide end of the guide tube;

[0007] The guide end sleeve of the guide tube is provided with a clamping claw driving mechanism.

[0008] Further, the clamping jaw driving mechanism comprises a driving ring, a connecting rod, a sliding rod, a vent sleeve and a vent pipe, wherein the driving ring is sleeved on the guide end of the guide pipe, wherein the clamping jaw and the driving ring are connected by a connecting rod, wherein one end of the connecting rod is hinged to the driving ring, and the other end is hinged to the clamping jaw;

[0009] A sliding rod is fixedly installed on the guide end of the driving ring away from the guide tube, wherein one end of the sliding rod is located in the ventilation sleeve, the sliding rod and the ventilation sleeve are airtightly sealed, one end of the ventilation sleeve is connected to the ventilation tube, and the ventilation tube extends outside the human body;

[0010] Furthermore, a fixing ring is fixedly mounted on the outer ring of the guide tube, wherein the ventilation sleeve is fixedly mounted on the fixing ring.

[0011] Furthermore, a clamping groove is provided in the middle of the inner side of the clamping jaw, wherein a plurality of rotating shafts are installed on the inner wall of the clamping groove, wherein the rotating shafts are all rotatably connected to the inner wall of the clamping groove, and the rotating shafts are close to the end of the clamping jaw away from the guide tube;

[0012] A pair of thorn inserting wheels are arranged on the rotating shaft, wherein the thorn inserting wheels are fixedly mounted with circumferentially distributed barbs.

[0013] Furthermore, a circumferentially distributed toggle block is fixedly mounted on the middle portion of the rotating shaft;

[0014] A limit block is fixedly installed on the top of the clamping groove, wherein the limit block corresponds to the rotating shaft one by one, and the limit block is located above the corresponding rotating shaft, and a hinged rotating block is arranged on the side of the limit block away from the guide tube, wherein the rotating block is located between adjacent toggle blocks, and when the toggle block rotates with the rotating shaft, the toggle block pushes the rotating block to rotate.

[0015] Furthermore, a negative pressure tube is arranged in the guide tube, wherein one end of the negative pressure tube is located in the guide end of the guide tube, and the negative pressure tube extends outside the human body.

[0016] Beneficial effects of the present invention:

[0017] When the lens of the fiber bronchoscope body finds a foreign body in the bronchus, the present invention can effectively wrap and clamp larger or firmly embedded foreign bodies and remove them from the human body; by providing a unidirectional rotating barb wheel, the barb wheel pierces the foreign body to prevent the foreign body from falling off during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0020] Figure 2 is a schematic three-dimensional cross-sectional view of a clamping jaw according to an embodiment of the present invention;

[0021] Figure 3 The embodiment of the present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0022] Figure 4 The embodiment of the present invention Figure 2 Schematic diagram of the enlarged structure at B. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figure 1 and Figure 3 As shown, a fiber bronchoscope comprises a guide tube 1 and a fiber bronchoscope body 2, wherein the fiber bronchoscope body 2 is fixedly mounted on the inner side of the guide tube 1, and the lens of the fiber bronchoscope body 2 is located at the guide end of the guide tube 1;

[0025] When in use, the fiber bronchoscope body 2 is introduced into the human bronchus through the guide end of the guide tube 1 to detect the human bronchus.

[0026] The outer wall of the guide end of the guide tube 1 is provided with circumferentially distributed clamping jaws 3, wherein the clamping jaws 3 are hinged to the guide tube 1, and a tightening spring 4 is provided between the inner wall of the clamping jaw 3 and the guide end of the guide tube 1, wherein one end of the tightening spring 4 is fixedly connected to the inner wall of the clamping jaw 3, and the other end is fixedly connected to the outer wall of the guide end of the guide tube 1.

[0027] The guide end of the guide tube 1 is provided with a clamping jaw driving mechanism, and the clamping jaw driving mechanism is used to drive the clamping jaws 3 so that the clamping jaws 3 are opened to each other.

[0028] During actual use, when the guide tube 1 is extended deep into the bronchus, when the lens of the fiber bronchoscope body 2 finds a foreign body in the bronchus, the jaw driving mechanism is used to drive the jaws 3 to open each other. At this time, the tightening spring 4 is in a stretched state, and the opened jaws 3 wrap the larger or firmly embedded sides. The tightening spring 4 contracts to allow the jaws 3 to clamp and tighten the foreign body, and by pulling out the guide tube 1 extended into the bronchus, the foreign body clamped by the jaws 3 is removed from the human body along with the guide tube 1, thereby completing the removal of the foreign body in the bronchus.

[0029] In this embodiment, the clamping jaw driving mechanism includes a driving ring 50, a connecting rod 51, a sliding rod 52, a ventilation sleeve 53 and a ventilation pipe 54, wherein the driving ring 50 is sleeved on the guide end of the guide pipe 1, wherein the clamping jaw 3 and the driving ring 50 are connected through the connecting rod 51, wherein one end of the connecting rod 51 is hinged to the driving ring 50, and the other end is hinged to the clamping jaw 3;

[0030] A sliding rod 52 is fixedly installed on the guide end of the driving ring 50 away from the guide tube 1, wherein one end of the sliding rod 52 is located in the ventilation sleeve 53, the sliding rod 52 and the ventilation sleeve 53 are airtightly sealed, one end of the ventilation sleeve 53 is connected to the ventilation tube 54, and the ventilation tube 54 extends outside the human body;

[0031] Meanwhile, a fixing ring 11 is fixedly mounted on the outer ring of the guide tube 1 , wherein the ventilation sleeve 53 is fixedly mounted on the fixing ring 11 .

[0032] When in use, the ventilation tube 54 outside the human body is connected to the joint of the empty tube syringe, and the syringe is pulled. At this time, the syringe is equivalent to extracting air from the ventilation sleeve 53 through the ventilation tube 54, and the sliding rod 52 drives the driving ring 50 to move away from the guide end of the guide tube 1. At this time, the driving ring 50 drives the clamping jaws 3 through the connecting rod 51, so that the clamping jaws 3 are in an open state with respect to each other;

[0033] Similarly, the syringe is pushed. At this time, the syringe is equivalent to injecting air into the ventilation sleeve 53 through the ventilation tube 54. The sliding rod 52 drives the driving ring 50 to move toward the guide end close to the guide tube 1. At this time, the driving ring 50 drives the clamping jaws 3 through the connecting rod 51, so that the clamping jaws 3 have a tendency to clamp each other. By tightening the spring 4, the clamping jaws 3 are contracted to move closer to each other, completing the clamping action of the foreign body.

[0034] like Figure 2 and Figure 4 As shown, in this embodiment, a clamping groove 31 is opened in the middle of the inner side of the clamping jaw 3, wherein a plurality of rotating shafts 32 are installed on the inner wall of the clamping groove 31, wherein the rotating shafts 32 are all rotatably connected to the inner wall of the clamping groove 31, and the rotating shafts 32 are close to the end of the clamping jaw 3 away from the guide tube 1;

[0035] A pair of thorn inserting wheels 33 are arranged on the rotating shaft 32, wherein the thorn inserting wheels 33 are fixedly mounted with circumferentially distributed barbs 34;

[0036] A circumferentially distributed toggle block 321 is fixedly mounted on the middle of the rotating shaft 32;

[0037] At the same time, a limit block 12 is fixedly installed on the top of the clamping groove 31, wherein the limit block 12 corresponds to the rotating shaft 32 one by one, and the limit block 12 is located above the corresponding rotating shaft 32, and a hinged rotating block 13 is provided on the side of the limit block 12 away from the guide tube 1, wherein the rotating block 13 is located between adjacent toggle blocks 321, and when the toggle block 321 rotates with the rotating shaft 32, the toggle block 321 pushes the rotating block 13 to rotate.

[0038] When in use, during the process of clamping the foreign object by the clamping jaw 3, specifically, during the process of continuously wrapping the foreign object by the clamping jaw 3, the foreign object comes into contact with the back side of the barbs 34 of the inserting wheel 33 of the clamping jaw 3, so that the inserting wheel 33 rotates and continuously wraps the foreign object. Since a side wall of the limit block 12 and the rotation limit of the rotating block 13, the inserting wheel 33 rotates counterclockwise relative to the illustrated orientation, but cannot rotate clockwise. That is, during the process of wrapping the foreign object, if the foreign object has a tendency to escape from the clamping jaw 3 (that is, the inserting wheel 33 has a tendency to rotate clockwise at this time), since the inserting wheel 33 cannot rotate at this time, the barbs 34 of the inserting wheel 33 penetrate into the foreign object, making it impossible for the foreign object to escape from the clamping jaw 3.

[0039] In this embodiment, a negative pressure tube 6 is disposed in the guide tube 1 , wherein one end of the negative pressure tube 6 is located in the guide end of the guide tube 1 , and the negative pressure tube 6 extends outside the human body.

[0040] Working principle: During use, when the lens of the fiber bronchoscope body 2 finds a foreign object in the bronchus, the jaw driving mechanism is used to drive the jaws 3 so that the jaws 3 open each other and extend the guide tube 1 forward until the guide end of the guide tube 1 is in contact with the foreign object. The negative pressure tube 6 is externally connected to a suction pump so that one end of the negative pressure tube 6 adsorbs the foreign object, and then the foreign object is adsorbed at the guide end of the guide tube 1. At this time, the jaws 3 wrap the foreign object, and the tightening spring 4 contracts so that the jaws 3 clamp and tighten the foreign object, and by pulling out the guide tube 1 extended into the bronchus, the foreign object clamped by the jaws 3 is moved out of the human body along with the guide tube 1, thereby completing the removal of the foreign object in the bronchus.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A fiber bronchoscope, comprising a guide tube (1) and a fiber bronchoscope body (2), characterized in that: The fiber bronchoscope body (2) is fixedly mounted on the inner side of the guide tube (1), and the lens of the fiber bronchoscope body (2) is located at the guide end of the guide tube (1); The outer wall of the guide end of the guide tube (1) is provided with circumferentially distributed clamping jaws (3), the clamping jaws (3) are hinged to the guide tube (1), and a tightening spring (4) is provided between the inner wall of the clamping jaw (3) and the guide end of the guide tube (1), wherein one end of the tightening spring (4) is fixedly connected to the inner wall of the clamping jaw (3), and the other end is fixedly connected to the outer wall of the guide end of the guide tube (1); The guide end sleeve of the guide tube (1) is provided with a clamping claw driving mechanism; A clamping groove (31) is provided in the middle of the inner side of the clamping jaw (3), wherein a plurality of rotating shafts (32) are installed on the inner wall of the clamping groove (31), wherein the rotating shafts (32) are all rotatably connected to the inner wall of the clamping groove (31), and the rotating shafts (32) are close to the end of the clamping jaw (3) away from the guide tube (1); A pair of thorn inserting wheels (33) are arranged on the rotating shaft (32), wherein circumferentially distributed barbs (34) are fixedly mounted on the thorn inserting wheels (33); A circumferentially distributed toggle block (321) is fixedly mounted in the middle of the rotating shaft (32); A limit block (12) is fixedly installed at the top of the clamping groove (31), wherein the limit block (12) corresponds to the rotating shaft (32) one by one, and the limit block (12) is located above the corresponding rotating shaft (32), and a hinged rotating block (13) is arranged on the side of the limit block (12) away from the guide tube (1), wherein the rotating block (13) is located between adjacent toggle blocks (321), and when the toggle block (321) rotates along with the rotating shaft (32), the toggle block (321) pushes the rotating block (13) to rotate; A negative pressure tube (6) is arranged inside the guide tube (1), wherein one end of the negative pressure tube (6) is located inside the guide end of the guide tube (1), and the negative pressure tube (6) extends outside the human body.

2. A fiber bronchoscope according to claim 1, characterized in that: The clamping jaw driving mechanism comprises a driving ring (50), a connecting rod (51), a sliding rod (52), a ventilation sleeve (53) and a ventilation pipe (54), wherein the driving ring (50) is sleeved on the guide end of the guide pipe (1), wherein the clamping jaw (3) and the driving ring (50) are connected via the connecting rod (51), wherein one end of the connecting rod (51) is hinged to the driving ring (50), and the other end is hinged to the clamping jaw (3); A sliding rod (52) is fixedly mounted on one side of the guide end of the driving ring (50) which is away from the guide tube (1), wherein one end of the sliding rod (52) is located in the ventilation sleeve (53), the sliding rod (52) and the ventilation sleeve (53) are hermetically sealed, one end of the ventilation sleeve (53) is connected to the ventilation tube (54), and the ventilation tube (54) extends outside the human body.

3. A fiber bronchoscope according to claim 2, characterized in that: A fixing ring (11) is fixedly mounted on the outer ring of the guide tube (1), wherein the ventilation sleeve (53) is fixedly mounted on the fixing ring (11).

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