Flexible endoscope assisted sheath

Abstract

The utility model relates to medical instrument technical field especially, more particularly to a kind of soft endoscope auxiliary sheath, comprising: sheath tube part, the connecting part of fixedly being arranged in the proximal end of the sheath tube part and the joint of detachably being arranged in the proximal end of the connecting part;Wherein, the sheath tube part along the axial direction of the sheath tube part respectively opens first sheath tube passage and second sheath tube passage, the outer surface of the sheath tube part close to the distal end is fixedly provided with first air bag, the axis of the first sheath tube passage is parallel with the axis of the second sheath tube passage;Wherein, the connecting part along the axial direction of the connecting part respectively opens first through-hole communicated with the first sheath tube passage and second through-hole communicated with the second sheath tube passage;The utility model's double sheath tube passage is in parallel, can simultaneously use multiple instruments, reduce plug frequency, and flexible material and rigid gradually change, improve the effect and safety of examination and treatment.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a flexible endoscope auxiliary sheath. Background Technology

[0002] In modern medicine, flexible endoscopes are widely used in the diagnosis and treatment of various diseases, such as those in the digestive and respiratory tracts. However, many challenges remain in the use of flexible endoscopes.

[0003] Existing auxiliary sheath designs are often simplistic or inefficient. Most auxiliary sheaths have only a single channel, severely limiting the possibility of using multiple instruments simultaneously during procedures. When performing complex examinations or treatments, doctors must frequently remove and reinsert instruments to change instruments with different functions, which not only prolongs the procedure time and increases patient pain and discomfort but also potentially increases the risk of infection due to repeated instrument insertions and removals. Furthermore, the channel layout and connectivity of some multi-channel sheaths are poor, making it easy for instruments to be obstructed during passage and affecting the smoothness of the procedure. While some auxiliary sheaths include airbags for fixation, the distribution and design of these airbags are often inadequate. For example, some airbags are only located on the outside of the sheath, offering limited fixation and sealing for instruments within the internal channel.

[0004] In summary, existing flexible endoscope auxiliary sheaths have many shortcomings in terms of fixation, channel design, material and rigidity, balloon and inflation control, and insertion resistance. There is an urgent need for a new type of auxiliary sheath to solve these problems and improve the effectiveness and safety of flexible endoscopy examinations and treatments. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a flexible endoscope auxiliary sheath.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A flexible endoscope-assisted sheath includes: a sheath portion, a connecting portion fixedly disposed at the proximal end of the sheath portion, and a connector detachably disposed at the proximal end of the connecting portion;

[0008] The sheath portion has a first sheath channel and a second sheath channel respectively opened along the axial direction of the sheath portion. A first airbag is fixedly provided on the outer surface of the sheath portion near the distal end. The axis of the first sheath channel is parallel to the axis of the second sheath channel.

[0009] The connecting part is provided with a first communicating hole communicating with the first sheath channel and a second communicating hole communicating with the second sheath channel along the axial direction of the connecting part;

[0010] The connector includes: a first access head detachably connected to the proximal end of the connector, a second access head fixedly disposed on one side of the first access head, and a gas communication pipe fixedly disposed on the other side of the first access head;

[0011] The first access head has a first channel along its axial direction, and the first channel communicates with the first connecting hole. The second access head has a second channel along its axial direction, and the second channel communicates with the second connecting hole. The gas connecting pipe extends into the interior of the sheath section and is connected to the first airbag pipe.

[0012] Furthermore, a second airbag is fixedly disposed on the inner wall of the first connecting hole, and a third airbag is fixedly disposed on the inner wall of the second connecting hole;

[0013] The gas communication tube is connected to a second airbag tube and a third airbag tube. The second airbag tube is connected to the second airbag, and the third airbag tube is connected to the third airbag.

[0014] Furthermore, the connector further includes a third access head threadedly connected to the proximal end of the first access head;

[0015] The third access head has a third channel along its axial direction, the radius of the third channel gradually decreases from the near end to the far end, and the third channel is connected to the first channel.

[0016] Furthermore, the sheath portion is made of a flexible material, and the rigidity of the sheath portion gradually decreases from the distal end to the proximal end.

[0017] Furthermore, the second and third airbags are annular in shape, with the second airbag arranged around the inner wall of the first connecting hole, and the third airbag arranged around the inner wall of the second connecting hole.

[0018] Furthermore, the gas connecting pipe is equipped with a regulating valve, and the gas connecting pipe is connected to the inflation device pipeline.

[0019] Furthermore, the sidewalls of the first sheath passage and the second sheath passage are covered with a lubricating coating.

[0020] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0021] This invention features a parallel dual-sheath channel, enabling the simultaneous use of multiple instruments, reducing the number of insertions and removals, shortening operation time, lowering the risk of infection, and facilitating smooth instrument passage. An airbag is integrated inside and out, externally fixing the sheath and internally fixing and sealing the instruments. The flexible material exhibits a gradual change in rigidity, with the distal end being soft to reduce damage and the proximal end rigid for ease of operation, thus improving the effectiveness and safety of examinations and treatments. Attached Figure Description

[0022] Figure 1 This is a cross-sectional structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the axial structure of the sheath section and the connecting section in this utility model;

[0025] The reference numerals in the attached figures are:

[0026] 1. Sheath section; 2. Connecting section; 3. Connector; 11. First sheath channel; 12. Second sheath channel; 4. First airbag; 5. First connecting hole; 6. Second connecting hole; 31. First access head; 32. Second access head; 33. Gas connecting tube; 311. First channel; 321. Second channel; 21. Second airbag; 22. Second airbag tube; 331. Third airbag tube; 332. Third access head; 34. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0030] Example

[0031] This embodiment provides a flexible endoscope auxiliary sheath, as shown in the attached figure. Figures 1-3 As shown, it includes: a sheath section 1, a connecting section 2 fixedly disposed at the proximal end of the sheath section 1, and a connector 3 detachably disposed at the proximal end of the connecting section 2;

[0032] The sheath section 1 has a first sheath channel 11 and a second sheath channel 12 respectively opened along the axial direction of the sheath section 1. A first airbag 4 is fixedly provided on the outer surface of the sheath section 1 near the distal end. The axis of the first sheath channel 11 is parallel to the axis of the second sheath channel 12.

[0033] The connecting part 2 is provided with a first communicating hole 5 communicating with the first sheath tube channel 11 and a second communicating hole 6 communicating with the second sheath tube channel 12 along the axial direction of the connecting part 2.

[0034] The connector 3 includes: a first access head 31 detachably connected to the proximal end of the connecting part 2, a second access head 32 fixedly disposed on one side of the first access head 31, a gas communication pipe 33 fixedly disposed on the other side of the first access head 31, and a third access head 34 threadedly connected to the proximal end of the first access head 31.

[0035] The first access head 31 has a first channel 311 along the axial direction of the first access head 31, and the first channel 311 communicates with the first connecting hole 5. The second access head 32 has a second channel 321 along the axial direction of the second access head 32, and the second channel 321 communicates with the second connecting hole 6. The gas connecting pipe 33 extends into the interior of the sheath part 1, and the gas connecting pipe 33 is connected to the pipe of the first airbag 4.

[0036] The third access head 34 has a third channel along its axial direction, the radius of the third channel gradually decreases from the near end to the far end, and the third channel is connected to the first channel 311.

[0037] Furthermore, a second airbag 21 is fixedly disposed on the inner wall of the first connecting hole 5, and a third airbag 22 is fixedly disposed on the inner wall of the second connecting hole 6.

[0038] The gas connecting pipe 33 is connected to a second airbag pipe 331 and a third airbag pipe 332. The second airbag pipe 331 is connected to the second airbag 21, and the third airbag pipe 332 is connected to the third airbag 22. The second airbag 21 and the third airbag 22 are annular in shape, and the second airbag 21 is arranged around the inner wall of the first connecting hole 5, and the third airbag 22 is arranged around the inner wall of the second connecting hole 6.

[0039] It should be noted that after the sheath section 1 is inserted into the appropriate position, the inflation device is controlled by adjusting the valve to inflate the first airbag 4, thereby inflating the first airbag 4 and fixing the sheath section 1 in the cavity to prevent it from shifting.

[0040] Simultaneously, air is inflated into the second airbag 21 and the third airbag 22. When an instrument enters the first sheath channel 11 through the first channel 311 and the first connecting hole 5, the second airbag 21 expands, which plays a certain role in fixing and sealing the instrument. Similarly, when an instrument enters the second sheath channel 12 through the second channel 321 and the second connecting hole 6, the third airbag 22 expands to achieve the corresponding function.

[0041] The sheath portion 1 is made of a flexible material, and the rigidity of the sheath portion 1 gradually decreases from the distal end to the proximal end.

[0042] The gas connecting pipe 33 is equipped with a regulating valve and is connected to the inflation device pipeline.

[0043] The sidewalls of the first sheath channel 11 and the second sheath channel 12 are covered with a lubricating coating to reduce resistance during insertion.

[0044] Before operation, detachably connect the first connector 31 of the connector 3 to the proximal end of the connecting part 2, ensuring that the first channel 311 is connected to the first connecting hole 5 and the second channel 321 is connected to the second connecting hole 6. Then connect the third connector 34 to the proximal end of the first connector 31 via a thread, so that the third channel is connected to the first channel 311. Connect the gas connecting pipe 33 to the inflation device pipeline and check whether the regulating valve is working properly.

[0045] During the procedure, the doctor holds the proximal end of the sheath 1 and slowly inserts it into the patient's target cavity, such as the digestive or respiratory tract. Because the sheath 1 is made of flexible material and has low rigidity at the distal end, it can adapt well to the curvature of the cavity, reducing tissue damage. Once the sheath 1 reaches the appropriate position, the endoscope is inserted into the first sheath channel 11 through the third channel of the third access head 34, the first channel 311 of the first access head 31, and the first connecting hole 5. The target area is then observed and diagnosed. If treatment is required, appropriate therapeutic instruments, such as biopsy forceps or injection needles, can be simultaneously inserted into the second sheath channel 12 through the second channel 321 and the second connecting hole 6 of the second access head 32. When the instruments pass through the first connecting hole 5 and the second connecting hole 6, the valves can be adjusted to inflate the first airbag 4, the second airbag 21, and the third airbag 22, causing them to expand and fix the sheath in the cavity, thus securing and sealing the endoscope and instruments.

[0046] After the operation is completed, the gas in the first airbag 4, the second airbag 21 and the third airbag 22 is released by adjusting the valve, and the sheath 1 is slowly pulled out of the patient's body.

[0047] In summary, the parallel dual-sheath channel of this utility model allows for the simultaneous use of multiple instruments, reducing the number of insertions and removals, shortening operation time, lowering the risk of infection, and ensuring smooth instrument passage. The combination of internal and external airbags secures the sheath externally and the instruments internally, while the flexible material with gradually changing rigidity—soft at the distal end to reduce damage and hard at the proximal end for easy operation—improves the effectiveness and safety of examination and treatment.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flexible endoscope auxiliary sheath, characterized in that, include: The sheath section (1), the connecting part (2) fixedly disposed at the proximal end of the sheath section (1), and the connector (3) detachably disposed at the proximal end of the connecting part (2); The sheath section (1) has a first sheath channel (11) and a second sheath channel (12) respectively along the axial direction of the sheath section (1). A first airbag (4) is fixedly provided on the outer surface of the sheath section (1) near the distal end. The axis of the first sheath channel (11) is parallel to the axis of the second sheath channel (12). The connecting part (2) is provided with a first connecting hole (5) communicating with the first sheath tube channel (11) and a second connecting hole (6) communicating with the second sheath tube channel (12) along the axial direction of the connecting part (2); The connector (3) includes: a first access head (31) detachably connected to the proximal end of the connection part (2), a second access head (32) fixedly disposed on one side of the first access head (31), and a gas communication pipe (33) fixedly disposed on the other side of the first access head (31). The first access head (31) has a first channel (311) along the axial direction of the first access head (31), and the first channel (311) is connected to the first connecting hole (5). The second access head (32) has a second channel (321) along the axial direction of the second access head (32), and the second channel (321) is connected to the second connecting hole (6). The gas connecting pipe (33) extends into the interior of the sheath (1), and the gas connecting pipe (33) is connected to the pipe of the first airbag (4).

2. The flexible endoscope auxiliary sheath according to claim 1, characterized in that, A second airbag (21) is fixedly disposed on the inner wall of the first connecting hole (5), and a third airbag (22) is fixedly disposed on the inner wall of the second connecting hole (6). The gas communication tube (33) is connected to a second airbag tube (331) and a third airbag tube (332). The second airbag tube (331) is connected to the second airbag (21), and the third airbag tube (332) is connected to the third airbag (22).

3. The flexible endoscope auxiliary sheath according to claim 1, characterized in that, The connector (3) further includes a third access head (34) threaded to the proximal end of the first access head (31); The third access head (34) has a third channel along its axial direction. The radius of the third channel gradually decreases from the near end to the far end. The third channel is connected to the first channel (311).

4. The flexible endoscope auxiliary sheath according to claim 1, characterized in that, The sheath portion (1) is made of a flexible material, and the rigidity of the sheath portion (1) gradually decreases from the distal end to the proximal end.

5. The flexible endoscope auxiliary sheath according to claim 2, characterized in that, The second airbag (21) and the third airbag (22) are annular in shape, and the second airbag (21) is arranged around the inner wall of the first connecting hole (5), and the third airbag (22) is arranged around the inner wall of the second connecting hole (6).

6. The flexible endoscope auxiliary sheath according to claim 1, characterized in that, The gas connecting pipe (33) is equipped with a regulating valve, and the gas connecting pipe (33) is connected to the inflation device pipeline.

7. The flexible endoscope auxiliary sheath according to claim 1, characterized in that, The sidewalls of the first sheath passage (11) and the second sheath passage (12) are covered with a lubricating coating.

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