Disposable hysteroscope imaging catheter and hysteroscope

Abstract

The utility model discloses a disposable hysteroscope imaging catheter and a hysteroscope. The imaging catheter comprises an insertion tube, an imaging module base installed at the front end of the insertion tube, and an insertion part which plays a guiding role at the foremost end when the imaging catheter is inserted into the cervix uteri. The imaging module seat comprises a front end face and a side wall, the front end face comprises an inclined section, and the inclined section and the side wall intersect to form an insertion part. According to the disposable hysteroscope imaging catheter disclosed by the utility model, a doctor can use a hysteroscope with the diameter of the imaging module seat being 5mm to perform an operation; when a doctor inserts the imaging catheter into a uterine cavity, the sharp-most corner of the guide arc firstly enters the cervix uteri, then the large-head part is slowly guided into the guide arc, and finally the whole insertion part is inserted into the cervix uteri, and in the whole process, the front-most end face of the imaging module seat of the insertion part is a guide part, so that the operation of the doctor is convenient, a patient feels more comfortable, and the patient is painless in an operation; secondary womb dilation injury is not needed, images watched by a doctor are clear and high in pixel, the visual field of the doctor in an operation is expanded, and the operation of the doctor is more convenient and accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments and hysteroscopes, and more specifically relates to a disposable hysteroscope imaging catheter and a hysteroscope. Background Art

[0002] Hysteroscopy is used for examination and treatment of the uterine cavity. When in use, the lens of the hysteroscope can magnify and observe the parts in the uterine cavity. Surgical instruments can be used to perform surgical operations on the uterine cavity through the hysteroscope. From the perspective of examination, hysteroscopy is the preferred examination instrument for gynecological hemorrhagic diseases and intrauterine lesions.

[0003] The hysteroscope currently on the market includes: an insertion part, an insertion tube and an imaging module seat, in which an optical imaging device and a light source are arranged; an operating part, connected to the end of the insertion part, including a handle and a handgrip at a certain angle to the handle, an instrument inlet is arranged on the handle, an instrument outlet is arranged on the front end face of the insertion part, and the instrument inlet is connected to the instrument outlet via an instrument channel penetrating the inside of the handle and the inner cavity of the insertion tube; a water inlet base and a water outlet base are arranged on the handle, and a water inlet and a water outlet are arranged at the front end of the insertion part, and the water inlet base and the water outlet base are connected to the water inlet and the water outlet via the water inlet channel and the water outlet channel penetrating the inside of the handle and the inner cavity of the insertion tube, respectively. When in use, the instrument is inserted from the instrument inlet and passed out from the instrument outlet.

[0004] Since the human uterine cavity is very small, in order to insert the uterine cavity painlessly without dilation, the diameter of the insertion tube of the hysteroscope needs to be less than 5mm. There is an angle between the uterus and the vagina, and it is hoped that the field of view of the lens at the front end of the insertion tube will be as large as possible or have a viewing angle. In order to have as clear a vision as possible, the optical imaging device and the light source will be large, and the forceps opening will become smaller, so that surgical instruments cannot pass through, and it will be inconvenient for doctors to perform surgery on lesions on the side of the uterine cavity. In order for doctors to have convenient access to surgical instruments, the size of the optical imaging device and the light source will have to be small, and the image pixels will be low. When there is no guide when inserting into the cervix, there will be deviation and discomfort to the patient. Based on these technical problems, there are currently no disposable hysteroscope products on the market that have to take into account the small insertion end and the field of view with a viewing angle. Utility Model Content

[0005] In view of at least one deficiency in the prior art, the utility model provides a disposable hysteroscopic imaging catheter and a hysteroscope.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A disposable hysteroscope imaging catheter comprises an insertion tube and an imaging module seat mounted on the front end of the insertion tube, and an insertion portion at the front end of the imaging catheter that plays a guiding role when inserted into the cervix;

[0008] The imaging module seat includes a front end face and a side wall; the front end face includes an inclined section and an inclined cut surface, and the intersection of the inclined section and the side wall forms the insertion part.

[0009] Furthermore, the intersection line of the inclined section and the side wall forms a guiding arc of the insertion part, and the sharpest corner of the guiding arc plays a guiding role.

[0010] Preferably, the insertion part is located on the inclined section and on one side deviating from the axis of the insertion tube.

[0011] Preferably, the overall shape of the insertion part formed by the inclined section and the inclined cut surface of the front end face and the side wall is similar to a water droplet shape; when a doctor uses this imaging catheter to insert into the uterine cavity, the small head part of the water droplet enters the cervix first (that is, the sharpest corner of the guiding arc enters the cervix first), and then the large head part is slowly introduced, and finally the entire insertion part is inserted into the cervix. The front end face of the imaging module seat of the insertion part serves as a guide throughout the process, making it convenient for the doctor to operate and the patient more comfortable, and preventing discomfort or unnecessary harm to the patient caused by the doctor's misalignment.

[0012] Furthermore, the inclined section and the inclined cut surface are arranged as inclined plane structures, and the inclined section intersects with the inclined cut surface to form an included angle Ω, and the value range of the included angle Ω is 45 - 55°; the inclined section intersects with the axis to form a tendency angle θ, and the value range of the tendency angle θ is 65 - 75°.

[0013] Furthermore, an optical imaging device, a light source, a water inlet, and a forceps opening are arranged on the front end face, and the forceps opening is also used as a water outlet.

[0014] Preferably, the optical imaging device and the light source are arranged on the inclined section, and multiple light sources are distributed around the optical imaging device.

[0015] Preferably, the water inlet and the forceps opening are mainly arranged on the inclined cut surface or are simultaneously located on the inclined section and the inclined cut surface; and multiple water inlets are distributed around the forceps opening.

[0016] Furthermore, the optical imaging device and the light source are mounted on the inclined section to form an installation angle B with the axis of the insertion tube. According to medical verification, the value range of the installation angle B is between 0 - 30°. Since the imaging module is fixed and the field of view angle is also a fixed angle A, when an angle B is formed between the optical imaging device and the insertion tube, this angle is also called the viewing angle B. At this time, when the doctor rotates the insertion part during operation, the entire imaging module rotates simultaneously, and the viewing angle also rotates. The entire field of view angle changes from the original A to A + 2B. Without an included angle, when the insertion part rotates 360°, the field of view angle remains unchanged at A. Therefore, this new type increases the doctor's surgical perspective, enabling the doctor to find lesions more accurately and quickly during surgery or examination. This new type increases the viewing angle without adding additional spare parts, and the overall cost of the new type is low, saving the patient's medical costs.

[0017] Furthermore, a dislocation distribution is formed between the forceps orifice and the optical imaging device; there is a dislocation distribution between the forceps channel outlet and the optical imaging device in this new type. Therefore, the space of the imaging module seat is expanded. In this way, even if the optical imaging device with high pixels and a large shape is selected, it will not affect the size of the forceps orifice. At the same time, it can meet the operation of all surgical instruments by the doctor, and the forceps channel outlet is also parallel to the optical imaging device and has an included angle with the insertion tube, facilitating the doctor to operate on the lesions on the side wall of the cervix during surgery. This solves the problem that it is inconvenient for doctors to operate on the lesions on the side wall of the cervix during surgery.

[0018] Preferably, the optical imaging device is higher than the front end face of the imaging module seat. The optical imaging device of this new type is higher than the front end face of the imaging module seat, so that the field of view angle of imaging will not be blocked and the image quality will not be affected; the water outlet can be together with the forceps orifice or can be placed on the side of the imaging module seat to further reduce the production cost.

[0019] The present utility model also provides a hysteroscope, including the imaging catheter described above; for the hysteroscope using this imaging catheter, there is a guide when the insertion part is inserted into the cervix during surgery, which brings convenience to the doctor's operation, avoids the insertion from deviating, and causes discomfort to the patient.

[0020] Compared with the prior art, the advantages of the present utility model are as follows:

[0021] 1. The imaging catheter of the hysteroscope of the present utility model has an overall insertion part with an outer shape similar to a water droplet formed by the inclined section and the inclined plane on the front end face and the side wall; when the doctor inserts, the small head part of the water droplet enters the cervix first (that is, the sharpest corner of the guiding arc enters the cervix first), and then the large head part is slowly introduced, and finally the entire insertion part is inserted into the cervix. The front end face of the imaging module seat of the entire insertion part serves as a guide during the whole process, making it convenient for the doctor to operate and the patient more comfortable, and avoiding discomfort or unnecessary harm to the patient caused by the doctor's misalignment.

[0022] 2. The hysteroscope imaging catheter of the present utility model is installed on an oblique section through an optical imaging device and a light source to form an installation angle B with the axis of the insertion tube. According to medical verification, the value range of the installation angle B is between 0 - 30°. Since the imaging module is fixed and the field of view angle is also a fixed angle A, when an angle B is formed between the optical imaging device and the insertion tube, this angle is also called the viewing angle B. At this time, when the doctor rotates the insertion part during operation, the entire imaging module rotates together, and the viewing angle also rotates together. The entire field of view angle changes from the original A to A + 2B. Without an included angle, when the insertion part rotates 360°, the field of view angle remains unchanged at A. Therefore, the present invention increases the doctor's surgical perspective, enabling the doctor to find lesions more accurately and quickly during surgery or examination. While increasing the viewing angle, the present invention does not add additional spare parts, and the overall cost of the present invention is low, saving the patient's medical cost.

[0023] 3. There is a staggered distribution between the forceps port and the optical imaging device of the hysteroscope imaging catheter of the present utility model; there is a staggered distribution between the forceps channel outlet and the optical imaging device of the present invention. Therefore, the space of the imaging module seat is enlarged. In this way, even if the optical imaging device with a high pixel and a large shape is selected, it will not affect the size of the forceps port, and at the same time, it can meet the operation of all surgical instruments by the doctor. Moreover, the forceps channel outlet is parallel to the optical imaging device and has an included angle with the insertion tube, facilitating the doctor to operate the lesions on the cervical side wall during surgery. This solves the problem that it is inconvenient for the doctor to operate the lesions on the cervical side wall during surgery.

[0024] 4. When using the hysteroscope imaging catheter of the present utility model, the doctor can perform hysteroscopic surgery with a hysteroscope with an imaging module seat diameter of 5 mm. During the surgery, the patient has no pain and does not require cervical dilation and secondary injury. The image seen by the doctor is clear and has a high pixel, and various instruments can be operated; moreover, it expands the field of view angle during the doctor's surgery, enlarges the field of vision during the doctor's surgery, making the doctor's surgery more convenient and accurate; by forming a certain included angle between the forceps port and the imaging module seat, it is more convenient for the doctor to operate the lesions on the side of the uterine cavity; the overall cost of the present invention is low, solving the patient's medical cost; when the insertion part of the imaging catheter is inserted into the cervix during hysteroscopic surgery, there is a guide, which brings convenience to the doctor's operation and avoids the problem of the insertion deviating and causing discomfort to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an exploded view of the disposable hysteroscope imaging catheter of the present utility model;

[0026] Figure 2 is a three-dimensional view of the disposable hysteroscope imaging catheter of the present utility model;

[0027] Figure 3 is a front view of the disposable hysteroscope imaging catheter of the present utility model;

[0028] Figure 4Side view (1) of the disposable hysteroscope imaging catheter of the present utility model;

[0029] Figure 5 Side view (2) of the disposable hysteroscope imaging catheter of the present utility model;

[0030] Figure 6 Top view of the disposable hysteroscope imaging catheter of the present utility model;

[0031] Figure 7 Cross-sectional view of the disposable hysteroscope imaging catheter of the present utility model;

[0032] Figure 8 Front view orthographic projection of the front end face of the disposable hysteroscope imaging catheter of the present utility model;

[0033] Markings in the figure: 1 - Insertion tube, 11 - Front end part, 12 - Axis; 2 - Imaging module seat, 20 - Front end face, 201 - Oblique section, 202 - Oblique cut surface, 21 - Optical imaging device, 22 - Light source, 23 - Water inlet, 24 - Forceps opening (water outlet), 25 - Side wall; 3 - Insertion part, 31 - Guide arc. Specific embodiments

[0034] The following further non - restrictive and detailed description of the technical solution of the utility model is made in conjunction with the preferred embodiments and their accompanying drawings. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation of the present utility model.

[0035] Refer to Figure 1-3As shown in the figure, a disposable hysteroscope imaging catheter disclosed by the utility model includes an insertion tube 1, an imaging module seat 2 installed on the front end 11 of the insertion tube 1, and an insertion part 3 that plays a guiding role at the very front when the imaging catheter is inserted into the cervix; the imaging module seat 2 includes a front end face 20 and a side wall 25; the front end face 20 includes an inclined section 201 and an inclined cut surface 202, and the inclined section 201 and the side wall 25 intersect to form the insertion part 3; the intersection line of the inclined section 201 and the side wall 25 forms a guiding arc 31 of the insertion part 3, and the sharpest angle of the guiding arc 31 plays a guiding role. By using the hysteroscope imaging catheter of the utility model, a doctor can perform a hysteroscope operation with a hysteroscope having an imaging module seat diameter of 5 mm. During the operation, the patient has no pain, no need for cervical dilation and secondary injury. The image seen by the doctor is clear and has a high pixel, and various instruments can be operated; moreover, it expands the viewing angle of the doctor during the operation, expands the field of view during the doctor's operation, and makes the doctor's operation more convenient and accurate; by making a certain angle between the forceps port and the imaging module seat, it is more convenient for the doctor to operate on the lesions on the side of the uterine cavity; the overall cost of this new type is low, which solves the medical cost of patients; when the imaging catheter is inserted into the uterine cavity during the hysteroscope operation, the insertion part has a guide, which brings convenience to the doctor's operation, avoids deviation during insertion, and causes discomfort to the patient.

[0036] Refer to Figure 4-6 As shown in the figure, as a further improved technical solution of the utility model, the insertion part 3 of this disposable hysteroscope imaging catheter is located on the inclined section 201 and on one side deviating from the axis 12 of the insertion tube 1; the inclined section 201 and the inclined cut surface 202 are set as inclined surface structures, and the inclined section 201 and the inclined cut surface 202 intersect to form an included angle Ω, and the value range of the included angle Ω is 45 - 55°; the inclined section 201 and the axis 12 intersect to form a tendency angle θ, and the value range of the tendency angle θ is 65 - 75°; and the overall shape of the insertion part 3 formed by the inclined section 201 and the inclined cut surface 202 of the front end face 20 and the side wall 25 is a water droplet-like shape; when the doctor uses this imaging catheter to insert into the uterine cavity, the small head part of the water droplet enters the cervix first (that is, the sharpest angle of the guiding arc 31 enters the cervix first), and then the large head part is slowly introduced, and finally the entire insertion part is inserted into the cervix. During the whole process, the front end face of the imaging module seat of the insertion part is a guide, which makes it convenient for the doctor to operate and the patient more comfortable, and will not cause discomfort or unnecessary harm to the patient due to the doctor's misalignment.

[0037] Refer to Figure 7 and 8As shown in the figure, as a further technical solution of the present utility model, an optical imaging device 21, a light source 22, a water inlet 23 and a forceps port 24 are provided on the front end face 20 of the disposable hysteroscope imaging catheter, and the forceps port is also used as a water outlet; the optical imaging device 21 and the light source 22 are arranged on the inclined section 201, and multiple light sources 22 are distributed around the optical imaging device 21; the water inlet 23 and the forceps port 24 are mainly arranged on the inclined section 202 or are simultaneously located on the inclined section 201 and the inclined section 202; and multiple water inlets 23 are distributed around the forceps port 24; and the optical imaging device 21 and the light source 22 are installed on the inclined section 201 to form an installation angle B with the axis 12 of the insertion tube 1. According to medical verification, the value range of the installation angle B is between 0-30°; since the imaging module is fixed and the field of view angle is also a fixed angle A, when an angle B is formed between the optical imaging device and the insertion tube, this angle is also called the viewing angle B. At this time, when the doctor rotates the insertion part during operation, the entire imaging module rotates together, and the viewing angle also rotates together. The entire field of view angle changes from the original A to A + 2B. Without an included angle, when the insertion part rotates 360°, the field of view angle remains unchanged at A. Therefore, the present invention increases the viewing angle of the doctor's operation, enabling the doctor to find the lesion more accurately and quickly during the operation or examination. While increasing the viewing angle, the present invention does not add additional spare parts, and the cost of the entire invention is low, saving the patient's medical cost.

[0038] At the same time, the present utility model also provides a hysteroscope, which includes the imaging catheter of the present utility model; when the doctor uses the hysteroscope of the imaging catheter, there is guidance when the insertion part is inserted into the cervix during the operation, which brings convenience to the doctor's operation and avoids the problem of the insertion running off and causing discomfort to the patient.

[0039] The above-described embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. A disposable hysteroscopy imaging catheter, characterized in that: It includes an insertion tube (1), an imaging module seat (2) installed on the front end portion (11) of the insertion tube (1), and an insertion portion (3) of the imaging catheter that plays a guiding role at the forefront when inserted into the cervix; the imaging module seat (2) includes a front end face (20) and a side wall (25), the front end face (20) includes an inclined section (201), and the inclined section (201) and the side wall (25) intersect to form the insertion portion (3).

2. The disposable hysteroscopy imaging catheter according to claim 1, wherein: The intersection line of the inclined section (201) and the side wall (25) forms a guiding arc (31) of the insertion portion (3), and the sharp corner of the guiding arc (31) plays a guiding role.

3. The disposable hysteroscopy imaging catheter according to claim 1 or 2, characterized in that: The insertion portion (3) is located on the inclined section (201) and deviates from one side of the axis (12) of the insertion tube (1).

4. The disposable hysteroscopy imaging catheter according to claim 1, wherein: The front end face (20) further includes an inclined cut surface (202), and the inclined section (201) and the inclined cut surface (202) are arranged in an inclined plane structure.

5. The disposable hysteroscopy imaging catheter according to claim 4, wherein: The inclined section (201) and the inclined cut surface (202) intersect to form an included angle Ω, and the value range of the included angle Ω is 45-55°.

6. The disposable hysteroscopy imaging catheter according to claim 5, wherein: The inclined section (201) and the axis (12) intersect to form a tendency angle θ, and the value range of the tendency angle θ is 65-75°.

7. The disposable hysteroscopy imaging catheter according to claim 1, wherein: An optical imaging device (21), a light source (22), a water inlet (23) and a forceps port (24) are arranged on the front end face (20).

8. The disposable hysteroscopy imaging catheter according to claim 7, characterized in that: The optical imaging device (21) and the light source (22) are arranged on the inclined section (201), and a plurality of the light sources (22) are distributed around the optical imaging device (21); the water inlet (23) and the forceps port (24) are mainly arranged on the inclined cut surface (202) or are simultaneously located on the inclined section (201) and the inclined cut surface (202); and a plurality of the water inlets (23) are distributed around the forceps port (24).

9. The disposable hysteroscopy imaging catheter according to claim 8, wherein: The optical imaging device (21) and the light source (22) are installed on the inclined section (201) to form an installation angle B with the axis (12) of the insertion tube (1), and the value range of the installation angle B is 0-30°; and the optical imaging device (21) is higher than the front end face (20) of the imaging module seat (2).

10. A hysteroscope, characterized in that, It includes the imaging catheter according to any one of claims 1 to 9.

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