CN216294002U

CN216294002U - Medical hard tube endoscope for urinary system

Info

Publication number: CN216294002U
Application number: CN202023352494.XU
Authority: CN
Inventors: 杨荔
Original assignee: Jiangmen Shuotong Medical Equipment Technology Co ltd
Current assignee: Jiangmen Shuotong Medical Equipment Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-04-15
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a medical hard tube endoscope for urinary system, which comprises an endoscope body, wherein the endoscope body comprises a handle part and an endoscope tube extending out of the front end of the handle part, the endoscope tube comprises an outer endoscope tube, the outer wall of the outer endoscope tube is circular, the inner wall of the outer endoscope tube is a non-circular inner hole to form a tube body with different wall thicknesses, an independent working catheter is connected in the inner hole in a penetrating way, the working catheter is attached to the lower wall surface of the inner hole, an endoscope channel is formed between the upper part of the working catheter and the inner wall of the outer endoscope tube, the endoscope channel is a closed space, the strength of the outer endoscope tube is enhanced through a part with relatively larger wall thickness, compared with the outer endoscope tube with the same outer diameter in the prior art, the strength can be correspondingly improved, the working catheter is enlarged, and more surgical instruments can be put in; therefore, when the endoscope is selected, the endoscope with the smaller outer diameter of the endoscope tube can be selected after the size of the required working catheter is determined, so that the risk of holding the endoscope due to the narrow channel when the endoscope enters a human body is reduced, or after the required outer diameter of the endoscope tube is determined according to the size of the ureter of a patient, the space of the working catheter is larger than that of an outer endoscope tube with the same outer diameter in the prior art, and the operation is more convenient.

Description

Medical hard tube endoscope for urinary system

Technical Field

The utility model relates to a medical appliance, in particular to a medical hard tube endoscope for urinary system.

Background

Clinically, the intracavity minimally invasive technology for treating the urinary calculus basically replaces the traditional open operation. In the intracavity minimally invasive technology, after an endoscope enters through a natural channel of a human body, other medical instruments enter the human body through a working channel to achieve the purposes of examination and treatment. When the urinary endoscope enters through a natural channel of a human body, the urinary endoscope is influenced by the size of the ureter, when the ureter of a patient is too small, the endoscope with the larger outer diameter cannot enter, or the ureter mucosa is damaged when the ureter enters, the condition of holding the endoscope can occur in serious cases, and after the condition occurs, the risk of ureter breakage also exists even if the operation is stopped. If an endoscope with a smaller outer diameter of the endoscope tube is selected, the endoscope entering risk is reduced, but the size of the working channel is correspondingly reduced due to the influence of the factor of reducing the outer diameter of the endoscope tube on the corresponding working channel, and the functional performance is restrained. The above situations can not achieve safety and effectiveness.

The endoscope outer tube adopts the pipe of wall thickness design all at present, reaches under the prerequisite of safe intensity, if the working channel that needs to realize the endoscope increases, then the wall thickness of outer mirror tube just needs corresponding increase, and the external diameter increases promptly, leads to the endoscope to get into the human degree of difficulty greatly or the operation risk increases.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a novel medical hard tube endoscope for the urinary system.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides a medical hard tube endoscope of urinary system, includes the mirror body, the mirror body includes the mirror tube that stalk portion and stalk portion front end stretch out, the mirror tube includes outer mirror tube, outer mirror tube outer wall is circular, and the inner wall is the non-circular shape hole, forms the outer mirror tube that varies the wall thickness, the cross-under has independent work pipe in the hole, work pipe with the lower part wall laminating of hole forms the scope passageway between the top of work pipe and the outer mirror tube inner wall, the scope passageway is inclosed space.

The working conduit is a D-shaped pipeline, an endoscope channel in the outer endoscope pipe is connected with a circular endoscope conduit in a penetrating mode, the cambered surface side of the D-shaped pipeline is attached to the lower wall surface of the inner hole, the endoscope conduit is located above the plane side of the D-shaped pipeline, the shape of the inner hole is matched with a tangent line led out from two end points of the plane side of the D-shaped pipeline to the endoscope conduit, and the cross section of the inner hole of the outer endoscope pipe is made to be in a water-drop shape.

The cross section of the inner hole of the outer endoscope tube is bullet-shaped, the working conduit is a triangular pipeline and is positioned below the inner hole, and an endoscope channel above the working conduit is square.

The cross section of the inner hole of the outer endoscope tube is in a diamond shape, the working catheter is a triangular pipeline, and an endoscope channel above the working catheter is in a triangular shape.

The handle is provided with a light source interface, a light guide optical fiber is arranged in the light source interface to perform light guiding irradiation, the light guide optical fiber is inserted in the endoscope channel and extends to the tail end of the endoscope channel from the light source interface of the handle and is arranged outside the endoscope guide tube.

The handle part is provided with an ocular joint, an image transmitting bundle and an optical lens are arranged in the endoscope guide tube, the optical lens is sealed and covered at the end pipe opening of the endoscope guide tube, and the image transmitting bundle extends to the ocular joint from the optical lens along the inside of the endoscope guide tube.

The utility model has the beneficial effects that: the outer endoscope tube is circular in outer wall, non-circular in inner wall, and forms a tube body with different wall thicknesses, the inner wall can normally accommodate components such as a working catheter, the strength of the outer endoscope tube is enhanced through a part with relatively larger wall thickness, compared with the outer endoscope tube with the same outer diameter in the prior art, the strength can be correspondingly improved, the working catheter is enlarged, and more surgical instruments can be placed in the outer endoscope tube or the operation space is larger; therefore, when the endoscope is selected, after the size of the required working catheter is determined, the endoscope with the smaller outer diameter of the endoscope tube can be selected so as to reduce the risk of holding the endoscope due to the narrow channel when entering a human body, or after the required outer diameter of the endoscope tube is determined according to the size of the ureter of a patient, the space of the working catheter is larger than that of an outer endoscope tube with the same outer diameter in the prior art, and the operation is more convenient.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view of a preferred embodiment of the present invention;

FIG. 4 is a cross-sectional view of an endoscope tube of a second embodiment of the present invention;

fig. 5 is a sectional view of an endoscope tube according to a third embodiment of the present invention.

Detailed Description

Referring to fig. 1 to 3, the medical hard tube endoscope for urinary system comprises a scope body 1, wherein the scope body 1 comprises a handle part 11 and a scope tube 12 extending from the front end of the handle part 11. The endoscope tube 12 comprises an outer endoscope tube 4, the outer wall of the outer endoscope tube 4 is circular, the inner wall of the outer endoscope tube 4 is a non-circular inner hole, the outer endoscope tube with different wall thicknesses is formed, the inner wall can normally contain components, an independent working conduit 6 penetrates through the inner wall, the working conduit 6 is attached to the lower wall surface of the inner hole, and an endoscope channel 13 is formed between the upper part of the working conduit 6 and the inner wall of the outer endoscope tube. The working catheter 6 is used for movably crossing the instruments for the urinary surgery, such as: biopsy forceps, holmium laser, ureteral catheter, and the like. The endoscope channel 13 is used for arranging the image transmission component and is a closed space, so that water is prevented from entering to influence the work of the image transmission component; the types of image transmission components are classified into optical mirrors and electronic mirrors: when the endoscope is an electronic endoscope, the lens of the electronic endoscope is hermetically arranged at the opening of the endoscope channel 13, and the electric lead passes through the handle part 11 along the endoscope channel 13 and passes out of the handle part 11 to be connected with the camera system; when the endoscope is an optical lens, an optical lens 9 for transmitting images and an image transmission bundle 8 are required to be arranged in an endoscope channel 13 through an endoscope guide tube 5, the optical lens 9 is sealed and covered at a pipe orifice at the tail end of the endoscope guide tube 5, an eyepiece joint 15 is arranged on a handle part 11, the image transmission bundle 8 extends to the eyepiece joint 15 from the optical lens 9 along the inside of the endoscope guide tube 5, the outside can observe the condition of the surgical site at the tail end of the endoscope guide tube 12 through the eyepiece joint 15, and the image transmission bundle can also be accessed into a camera system and amplified through the camera system, so that the observation is facilitated.

When adopting the optical lens, in order to realize the illumination, still be equipped with the light source structure on the stalk portion 11, be equipped with light guide fiber 7 in the light source interface 14 and carry out the light guide and shine, light guide fiber 7 alternates in scope passageway 13 to extend to scope passageway 13 end and arrange in scope pipe 5 week side from the light source interface of stalk portion 11, guide light to scope passageway 13 end and jet out.

The outer mirror tube 4 adopts the design of unequal walls, the strength of the outer mirror tube is enhanced through the part with the relatively larger wall thickness, compared with the outer mirror tube with the same outer diameter in the prior art, the strength can be correspondingly improved, the working conduit is enlarged, and more surgical instruments can be put in the outer mirror tube. Therefore, when the endoscope is selected, after the size of the required working catheter is determined, the endoscope with the smaller outer diameter of the endoscope tube can be selected so as to reduce the risk of holding the endoscope due to the narrow channel when entering a human body, or after the required outer diameter of the endoscope tube is determined according to the size of the ureter of a patient, the space of the working catheter is larger than that of an outer endoscope tube with the same outer diameter in the prior art, and the operation is more convenient.

As a preferred embodiment of the utility model, the working conduit 6 is a D-shaped pipeline, and the endoscope channel 13 in the outer endoscope tube 4 is connected with the circular endoscope conduit 5 in a penetrating way; the cambered surface side of the D-shaped pipeline is attached to the lower wall surface of the inner hole, the lower space of the inner hole is completely utilized, the D-shaped inner cavity of the D-shaped pipeline can provide more space for the penetration connection of surgical instruments, and vacant positions are reserved for water supply; the endoscope conduit 5 is positioned above the plane side of the D-shaped pipeline, and the shape of the inner hole is matched with the tangent lines led out to the endoscope conduit 5 through two end points of the plane side of the D-shaped pipeline, so that the section of the inner hole of the outer endoscope pipe 4 is in a water drop shape. The following is a detailed description of the measured data, and the strength of the outer lens tube and the size of the working conduit are significantly improved after the technical solution of the preferred embodiment is adopted.

Measurement conditions were as follows: the material is as follows: 45# steel; force application points: 425mm along the length direction of the starting end part of the outer mirror tube; measurement points are as follows: the starting end of the outer lens tube.

In the prior art, the wall thickness of an outer mirror tube is equal:

the utility model, the outer lens tube with different wall thickness:

the prior art is the same as the outer pipe diameter of the utility model, and the sizes of the working pipelines are compared:

outer pipe diameter of 3.6mm	Prior Art	The utility model
			Working pipe size (Unit: FR)	4FR	5.4FR

From the data, the left and right stress bending moments of the outer mirror tube 4 in the preferred embodiment are greatly reduced (the lower the bending moment data is, the higher the strength of the mirror tube is), compared with the prior art, so that the strength of the outer mirror tube is obviously improved after the technical scheme of the utility model is adopted; at the same time, the working catheter of the preferred embodiment is significantly larger in size than the prior art, given the same outside diameter.

As shown in FIG. 4, as a second embodiment of the present invention, the cross section of the inner hole of the outer lens tube 4 is bullet-shaped, the working conduit 6 is a triangular pipe and is located below the inner hole, and the endoscope channel 13 above the working conduit 6 is square, and can be used for installing the lens of the electronic lens.

As shown in FIG. 5, as a third embodiment of the present invention, the inner bore of the endoscope tube 4 has a diamond-shaped cross section, the working conduit 6 is a triangular tube, and the endoscope channel 13 above the working conduit 6 has a triangular shape.

It should be understood that the above-mentioned embodiments are only preferred embodiments of the present invention, and should not be taken as limiting the scope of the present invention; all the technical purposes and effects of the utility model realized by basically the same technical means belong to the protection scope of the utility model.

Claims

1. The utility model provides a medical hard tube endoscope of urinary system, includes mirror body (1), mirror body (1) includes handle portion (11) and mirror tube (12) that handle portion (11) front end stretches out, mirror tube (12) include outer mirror tube (4), its characterized in that: the outer wall of the outer endoscope tube (4) is circular, the inner wall of the outer endoscope tube is a non-circular inner hole, the outer endoscope tube with different wall thicknesses is formed, an independent working guide tube (6) is connected in the inner hole in a penetrating mode, the working guide tube (6) is attached to the lower wall surface of the inner hole, an endoscope channel (13) is formed between the upper portion of the working guide tube (6) and the inner wall of the outer endoscope tube, and the endoscope channel (13) is a closed space.

2. The medical hard tube endoscope according to claim 1, characterized in that: working conduit (6) are D shape pipeline, scope passageway (13) cross-under in outer mirror tube (4) has circular shape scope pipe (5), and the laminating of the cambered surface side of D shape pipeline the lower part wall of hole, scope pipe (5) are located the plane side top of D shape pipeline, the shape of hole is identical with the tangent line of drawing forth to scope pipe (5) through the both ends point of D shape pipeline plane side, makes the hole cross-section of outer mirror tube (4) be the water droplet form.

3. The medical hard tube endoscope according to claim 1, characterized in that: the cross section of an inner hole of the outer endoscope tube (4) is bullet-shaped, the working conduit (6) is a triangular pipeline and is positioned below the inner hole, and an endoscope channel (13) above the working conduit (6) is square.

4. The medical hard tube endoscope according to claim 1, characterized in that: the cross section of an inner hole of the outer endoscope tube (4) is in a diamond shape, the working guide tube (6) is a triangular pipeline, and an endoscope channel (13) above the working guide tube (6) is triangular.

5. The medical hard tube endoscope according to claim 2, characterized in that: be equipped with light source interface (14) on stalk portion (11), be equipped with leaded light optic fibre (7) in light source interface (14) and carry out the light guide and shine, leaded light optic fibre (7) alternate in endoscope passageway (13) to extend to endoscope passageway (13) end and arrange from the light source interface of stalk portion (11) outside endoscope pipe (5).

6. The medical hard tube endoscope according to claim 2, characterized in that: the handle part (11) is provided with an ocular joint (15), an image transmission bundle (8) and an optical lens (9) are arranged in the endoscope guide tube (5), the optical lens (9) is sealed and closed at the end pipe opening of the endoscope guide tube (5), and the image transmission bundle (8) extends to the ocular joint (15) from the optical lens (9) along the inside of the endoscope guide tube (5).