Hysteroscope sheath

Abstract

The utility model discloses a hysteroscope sheath, and relates to the technical field of medical instruments. In order to solve the problem that an existing hysteroscope sleeve only has a single containing function and cannot contain an endoscope and various surgical instruments at the same time, the following technical scheme is provided: the hysteroscope sleeve comprises a handle body, a mounting seat, a connecting seat and a sheathing canal assembly, one end of the handle body is communicated to the sheathing canal assembly through the connecting seat, and the other end of the handle body is provided with the mounting seat; the mounting seat is used for connecting and mounting a hysteroscope; hose joints are arranged on the other opposite side of the handle body, hoses are arranged in the hose joints, one hose joint is communicated with an instrument catheter through the hose, the other hose joint is communicated with a water valve assembly through the hose, and valves for controlling communication of the instrument catheter and the water valve assembly are arranged on the instrument catheter and the water valve assembly. The endoscope and the surgical instrument can be contained at the same time, the workload of assembling the endoscope and the surgical instrument by a doctor is reduced, and the working efficiency and the surgical safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a hysteroscope sheath. Background Art

[0002] In the medical field, especially in gynecological diagnosis and treatment, hysteroscopic surgery has become an important and widely used minimally invasive technique. This technique uses a hysteroscope, an endoscope device, to directly and accurately observe the morphological changes in the uterine cavity and perform precise diagnosis and treatment of uterine cavity lesions. However, in complex surgical procedures, relying solely on the hysteroscope is not enough, and a series of surgical instruments need to be operated in coordination, such as probes, suction tubes, forceps, scissors, etc., to complete tasks such as exploration, sampling, resection, or repair of lesions.

[0003] Currently, the endoscope and surgical instruments in hysteroscopic surgery are mostly designed in a split manner, that is, the endoscope and surgical instruments need to enter the human body separately. This not only increases the complexity and time cost of surgical operations but also may cause problems such as instrument collision and cross-contamination during the surgical process, thereby affecting the efficiency and safety of the surgery. In addition, traditional hysteroscope sheaths often only have a single function of accommodation and protection, cannot accommodate both the endoscope and a variety of surgical instruments at the same time, and lack sufficient stability and flexibility, making it difficult to meet the requirements of modern hysteroscopic surgery for high efficiency, safety, and convenience. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hysteroscope sheath to solve the problem that the existing hysteroscope sheath only has a single accommodation function and cannot accommodate both the endoscope and a variety of surgical instruments at the same time.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A hysteroscope sheath includes: a handle body, a mounting seat, a connecting seat, and a sheath tube assembly. One end of the handle body is connected to the sheath tube assembly through the connecting seat, and a mounting seat is provided at the other end of the handle body for connecting and mounting a hysteroscope.

[0007] A hose connector is provided on the other opposite side of the handle body, and hoses are provided inside the hose connectors. One of the hose connectors is connected to an instrument catheter through a hose, and the other hose connector is connected to a water valve assembly through a hose. Valves for controlling their connection are provided on both the instrument catheter and the water valve assembly.

[0008] Preferably, the mounting seat includes a mounting post, a mounting seat cavity, a mounting boss, a limiting block, and a clamping tongue. The mounting post is provided inside the handle body, mounting bosses are symmetrically provided on the outer end face of the mounting post, and the mounting post and the mounting bosses form a mounting seat cavity. The limiting block is provided on the outer end face of the mounting boss, and the clamping tongue is clamped on the symmetric side of the mounting boss and the limiting block.

[0009] Preferably, the whole installation post is oval and an annular groove is formed on the side surface, and the cavity of the installation seat is eccentrically arranged on the installation post.

[0010] Preferably, an installation cavity for installing the installation seat is formed at the tail end of the handle body, and the front end of the handle body is connected to the connecting seat through a connecting thread.

[0011] Preferably, the sheath tube assembly includes an outer sheath tube and an inner sheath tube. The outer sheath tube is connected to the handle body through the connecting seat, and one end of the inner sheath tube is communicated with the hysteroscope channel.

[0012] Preferably, the socket end of the connecting seat is fixedly connected to the socket end of the outer sheath tube and the socket end of the handle body of the handle body respectively.

[0013] Preferably, the shape of the connecting seat is a stepped structure from circular to oval.

[0014] Preferably, one end of the tongue is a semi-circular arc structure, and the other end of the tongue is a thin and long part with a U-shaped structure, which is respectively stuck in the gaps on the side surfaces of the installation boss and the limit block to limit the hysteroscope. And the end of the thin and long part of the U-shaped structure bulges inwards to form a circular arc chamfer, and a thickened wall is arranged on the outer end surface of the thin and long part.

[0015] The utility model has the following beneficial effects:

[0016] The hysteroscope sheath of the utility model can not only accommodate the endoscope and surgical instruments at the same time, reduce the workload of doctors in assembling the endoscope and surgical instruments, improve work efficiency, but also play a role in stabilizing and protecting the hysteroscope, prevent the hysteroscope from loosening and falling off during use and affecting the surgical process, and further improve the surgical safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall external structure diagram of the hysteroscope sheath;

[0018] Figure 2 is the overall external half-sectional view of the hysteroscope sheath;

[0019] Figure 3 is the structure diagram of the handle body;

[0020] Figure 4 is the structure diagram of the outer sheath tube;

[0021] Figure 5 is the structure diagram of the connecting seat;

[0022] Figure 6A is the structure diagram of the hysteroscope mounting seat;

[0023] Figure 6B is the sectional view of the hysteroscope mounting seat;

[0024] Figure 7 It is a structural diagram of a hysteroscope sheathed in a hysteroscope sheath;

[0025] Figure 8 It is a structural diagram of a tongue latch;

[0026] Figures 1 to 8 The reference numerals shown in the figure are respectively represented as: handle body 1, hose joint 11, installation groove cavity 12, connecting thread 13, anti-slip grip portion 14, handle body socket end 15, mounting seat 2, mounting post 21, mounting seat groove cavity 22, mounting boss 23, limiting block 24, tongue latch 25, connecting seat 3, connecting seat socket end 31, connecting thread 32, anti-slip pattern 33, hose 4, instrument catheter 5, water valve assembly 6, sheath assembly 7, outer sheath 71, inner sheath 72, outer sheath socket end 73. Specific embodiments

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0028] Please refer to Figures 1 - 2 , the present invention provides a hysteroscope sheath, including a handle body 1, a mounting seat 2, a connecting seat 3, a hose 4, an instrument catheter 5, a water valve assembly 6 and a sheath assembly 7. Among them, one end of the handle body 1 is connected to the sheath assembly 7 through the connecting seat 3, and the other end of the handle body 1 is provided with a mounting seat 2, and the mounting seat 2 is used to provide a hysteroscope channel and install and lock the hysteroscope; both the instrument catheter 5 and the water valve assembly 6 are connected to the inside of the handle body 1 through the hose 4. An instrument valve is sleeved on the instrument catheter 5. One end of the instrument catheter 5 is connected to the inside of the sheath assembly 7. An instrument (such as an electrode) passes through the instrument catheter 5 and is guided to the visual mirror sheath head through the guiding structure of the sheath assembly 7; the water valve assembly 6 is used to control the normal saline flowing into the sheath assembly 7, and the water flows out through the sheath assembly 7 to clean the surgical site.

[0029] Such as Figure 3 , Figure 4 and Figure 5As shown in the figure, the handle body 1 includes a hose connector 11, a mounting cavity 12, a connecting thread 13, a non-slip grip portion 14, and a socket end 15 of the handle body. The front and back of the handle body 1 are the non-slip grip portions 14, and the hose connectors 11 are respectively arranged on both sides thereof. The instrument catheter 5 is inserted into one of the hose connectors 11, and the water valve assembly 6 is inserted into the other hose connector 11. Valves for controlling their communication are provided on both the instrument catheter 5 and the water valve assembly 6. The other end of the instrument catheter 5 is sleeved with an elastic rubber cap to facilitate passing through and protecting different instruments (such as electrode wires). The other end of the water valve assembly 6 is sleeved with a Luer connector to facilitate connection with a physiological saline bag.

[0030] The upper end of the handle body 1 is the mounting cavity 12 for setting the mounting seat 2. Its lower end is fastened to the connecting seat 3 through the connecting thread 13. At the same time, the socket end 73 of the outer sheath tube and the socket end 15 of the handle body are firmly connected together through the socket end 31 provided on the connecting seat 3. The connecting seat 3 is designed in a stepped structure shape from a circle to an ellipse, preventing the outer sheath tube 71 from rotating and falling off during use and realizing the sealing between the outer sheath tube 71 and the handle body 1. And the matching connecting thread 32 adopts a multi-start thread design, with fast screwing and uniform stress; the outer surface of the connecting seat 3 is provided with anti-slip lines 33 and the grooves evenly arranged on the end face are convenient for tightening or loosening it with the handle body 1, facilitating the installation or disassembly of the outer sheath tube 71, and at the same time facilitating demoulding and avoiding rotation with the mould.

[0031] Figure 6A It is a structural diagram of the hysteroscope mounting seat; the hysteroscope mounting seat 2 includes a mounting post 21, a mounting seat cavity 22, a mounting boss 23, a limiting block 24 and a tongue 25. Among them, the mounting post 21 is fixedly arranged in the mounting cavity 11 at the upper end of the handle body 1. Two circular arc-shaped mounting bosses 23 are symmetrically arranged on the upper end face of the mounting post 21 and form a mounting seat cavity 22 adapted to the mounting end of the hysteroscope. An arc-shaped limiting block 24 is arranged on the upper end face of the mounting boss 23, and a gap is provided between the side surfaces of the mounting boss 23 and the limiting block 24 to facilitate passing the tongue 25 through, so that the mounting end of the hysteroscope is limited and abutted between the mounting boss 23, the limiting block 24 and the tongue 25, preventing the hysteroscope from moving up, down, left and right in the mounting seat cavity 22 during use, playing a role in stabilizing and protecting the hysteroscope, as Figure 7 shown; among them, the overall shape of the mounting seat 2 of the hysteroscope is elliptical and an annular groove is provided on the side surface. The mounting seat cavity 22 is eccentrically arranged on the mounting post 21, effectively avoiding rotation during use. The mounting seat cavity 22 and the reinforcing ribs provided on the mounting post 21 adopt an asymmetric layout design to achieve anti-misassembly. The annular groove can be sealed inside the sheath by adding a sealing ring or filling with glue, as Figure 6B shown.

[0032] The sheath tube assembly 7 includes an outer sheath tube 71, an inner sheath tube 72, and an outer sheath tube socket end 73. The outer sheath tube 71 is connected to the handle body 1 through a connecting seat 3, and is used to provide a channel for instruments, the inner sheath tube 72, and water flow and to protect them. One end of the inner sheath tube 72 is communicated with the hysteroscope channel, and is used to pass through the hysteroscope. The hysteroscope channel can adopt a flexible tube. The handle body 1 and the connecting seat 3, the socket end, the outer sheath tube 71, etc. have a natural transition in diameter, which is beneficial to realizing instrument guidance.

[0033] As Figure 8 shown, the tongue 25 is in the shape of a thin sheet. One end is arc-shaped for easy finger clamping for insertion and extraction, and at the same time, it is convenient to clamp a cylindrical or tubular instrument on it to play a role in preventing detachment. The other end bifurcates into a thin and long part with a U-shaped structure. The thin and long part is clamped in the side gap between the mounting boss 23 and the limit block 24 to realize the limit of the hysteroscope. And the end part of it protrudes inwards to form an arc-shaped chamfer to prevent the tongue 25 from loosening naturally, reducing the accidental situation of the hysteroscope loosening. The side part of it is a relatively thick thickened wall, which can strengthen the structural strength and elasticity of the tongue 25 and increase stability.

[0034] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hysteroscopic sheath, characterized in that: include: A handle body (1), a mounting seat (2), a connecting seat (3) and a sheath assembly (7), wherein one end of the handle body (1) is connected to the sheath assembly (7) via the connecting seat (3), and the other end of the handle body (1) is provided with the mounting seat (2), and the mounting seat (2) is used for connecting and mounting a hysteroscope; A hose connector (11) is provided on one opposite side of the handle body (1), and a hose (4) is provided in each of the hose connectors (11). One of the hose connectors (11) is connected to an instrument conduit (5) through the hose (4), and the other hose connector (11) is connected to a water valve assembly (6) through the hose (4). The instrument conduit (5) and the water valve assembly (6) are both provided with valves for controlling their connection.

2. The hysteroscopic sheath according to claim 1, characterized in that: The mounting seat (2) comprises a mounting column (21), a mounting seat groove (22), a mounting boss (23), a limit block (24) and a latch (25); the mounting column (21) is arranged in the handle body (1); the outer end surface of the mounting column (21) is symmetrically provided with the mounting boss (23); the mounting column (21) and the mounting boss (23) form a mounting seat groove (22); the limit block (24) is arranged on the outer end surface of the mounting boss (23); and the latch (25) is latched on the symmetrical sides of the mounting boss (23) and the limit block (24).

3. The hysteroscopic sheath according to claim 2, characterized in that: The mounting column (21) is elliptical in shape as a whole and has an annular groove on its side, and the mounting seat groove cavity (22) is eccentrically arranged on the mounting column (21).

4. The hysteroscopic sheath according to claim 3, characterized in that: The rear end of the handle body (1) is provided with a mounting groove (12) for arranging the mounting seat (2), and the front end of the handle body (1) is connected to the connecting seat (3) via a connecting thread (13).

5. The hysteroscopic sheath according to claim 1, characterized in that: The sheath tube assembly (7) comprises an outer sheath tube (71) and an inner sheath tube (72); the outer sheath tube (71) is connected to the handle body (1) via the connecting seat (3); one end of the inner sheath tube (72) is connected to the hysteroscope channel.

6. The hysteroscopic sheath according to claim 5, characterized in that: The connection seat sleeve end (31) of the connection seat (3) is respectively fixedly connected to the outer sheath sleeve end (73) of the outer sheath (71) and the handle body sleeve end (15) of the handle body (1).

7. The hysteroscopic sheath according to claim 6, characterized in that: The shape of the connecting seat (3) is a stepped structure ranging from circular to elliptical.

8. The hysteroscopic sheath according to claim 2, characterized in that: One end of the latch tongue (25) is a semicircular arc structure, and the other end of the latch tongue (25) is a thin long portion of a U-shaped structure, which is respectively clamped in the gaps between the side of the mounting boss (23) and the side of the limit block (24) to limit the position of the hysteroscope, and the end of the thin long portion of the U-shaped structure protrudes inward to form an arc-shaped chamfer, and a thickened wall is provided on the outer end surface of the thin long portion.

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