Endoscope sheath of electric resection endoscope

Abstract

The utility model discloses an electric resection endoscope sheath, and relates to the technical field of medical instruments. In order to solve the problem that an existing endoscope sheath is poor in cleaning effect due to the fact that a surgical site is cleaned through water only through gaps between instruments in the surgical process, the following technical scheme is provided: the endoscope sheath comprises a mounting seat, a sheath tube assembly, a guide seat, a water valve assembly, an instrument mounting assembly and an endoscope mounting assembly; the sheathing canal assembly is respectively communicated with the instrument mounting assembly and the endoscope mounting assembly through the guide seat; the water valve assembly is communicated with the side end of the guide seat; the sheath tube assembly comprises a visual mirror sheath head, a water passing through hole and an outer sheath tube which are sequentially connected, an inner sheath tube is arranged in the outer sheath tube and comprises a tube wall and water passing grooves symmetrically formed in the two sides of the tube wall, one end of each water passing groove is communicated with the water passing through hole, and the other end of each water passing groove is communicated with the water valve assembly. The instrument cleaning device is simple and practical in structure, can improve the operation cleaning effect of instruments, facilitates cleaning during operation, and prevents the instruments from entering and being taken out to be blocked.

Description

Technical Field

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

[0002] In the medical field, such as urology, when performing internal examinations or minimally invasive surgeries on relevant parts of the human body, not only is it often necessary to use an endoscope, but it may also be necessary for some surgical instruments to enter the human body simultaneously to cooperate with the endoscope to complete corresponding diagnoses or treatments. A sheath that can accommodate both the endoscope and surgical instruments is required. For example, the endoscope sheath disclosed in the patent with the application number CN202221211691.6 can accommodate both the endoscope and surgical instruments, reducing the workload of doctors in assembling the endoscope and surgical instruments and improving work efficiency. However, existing sheaths often only wash the surgical site through the gaps between instruments during the operation. With the development trend of surgical instruments towards miniaturization and refinement, the water flow rate of such a washing method is generally small, the washing effect is poor, it is not conducive to washing during the operation, and there is a problem of instrument jamming. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a resectoscope sheath to solve the problem that existing sheaths only wash the surgical site through the gaps between instruments during the operation, resulting in a small water flow rate and a poor washing effect.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A resectoscope sheath includes a mounting base and a sheath tube assembly, a guiding seat, a water valve assembly, an instrument mounting assembly, and an endoscope mounting assembly that are respectively sleeved inside the mounting base. The sheath tube assembly is communicated with the instrument mounting assembly and the endoscope mounting assembly through the guiding seat respectively. The water valve assembly is communicated with the side end of the guiding seat.

[0006] The sheath tube assembly includes a visible sheath head and an outer sheath tube that are connected in sequence. The head of the outer sheath tube is provided with a plurality of water passing through holes along the axial and radial directions. An inner sheath tube is arranged inside the outer sheath tube. The inner sheath tube includes a tube wall and water passing grooves symmetrically arranged on both sides of the tube wall. One end of the water passing groove is communicated with the water passing through hole, and the other end of the water passing groove is communicated with the water valve assembly.

[0007] Preferably, the visible sheath head includes an endoscope guiding hole and an instrument guiding hole. The endoscope guiding hole guides the moving direction of the endoscope, and the instrument guiding hole guides the moving direction of the instrument.

[0008] Preferably, the guiding seat is internally provided with an instrument guiding hole and an endoscope guiding hole near its upper connecting end. The instrument guiding hole guides the instrument to move towards the instrument guiding hole, and the endoscope guiding hole guides the endoscope to move towards the endoscope guiding hole.

[0009] Preferably, the water valve assembly includes an inlet valve which is communicated with a water passing groove on one side of the inner sheath tube through a guide seat, and the inlet valve controls the water flow into the sheath tube assembly.

[0010] Preferably, the water valve assembly further includes an outlet valve which is communicated with a water passing groove on the other side of the inner sheath tube through a guide seat, and the outlet valve controls the discharge of sewage and waste liquid generated by surgical cleaning from the sheath tube assembly.

[0011] Preferably, the endoscope mounting assembly includes an endoscope catheter, and the head of the endoscope catheter is communicated with the guide seat through a mounting seat.

[0012] Preferably, a locking mechanism is provided at the tail of the endoscope catheter, and the locking mechanism mounts and locks the electrocision endoscope.

[0013] Preferably, the instrument mounting assembly includes an instrument catheter, one end of the instrument catheter is communicated with the guide seat, and the instrument is respectively connected to the instrument catheter, the instrument guiding hole and the instrument leading hole.

[0014] The utility model has the following beneficial effects:

[0015] Efficient water flow management system: The water passing grooves provided on the inner sheath tube are communicated with the water passing through holes and the water valve assembly to form an efficient water flow management system. The inlet valve can control the water flow into the sheath tube assembly for flushing and cleaning during the operation; while the outlet valve is responsible for discharging the sewage and waste liquid generated during the operation, ensuring the cleanliness and aseptic environment of the operation area. This design helps to clean while operating, clean the field of view, reduce the risk of surgical infection, and improve the surgical efficiency.

[0016] Precise guiding and positioning: The endoscope guiding hole and the instrument guiding hole are provided on the endoscope sheath head to respectively guide the moving directions of the endoscope and the instrument. At the same time, the instrument guiding hole and the endoscope guiding hole opened inside the guide seat further ensure that the instrument and the endoscope can accurately and stably enter the operation area. This precise guiding and positioning function helps the doctor to perform more delicate and accurate operations during the operation, preventing the instrument from getting stuck during insertion and removal.

[0017] Compact structure and complete functions: By organically combining components such as the mounting seat, the sheath tube assembly, the guide seat, the water valve assembly, the instrument mounting assembly and the endoscope mounting assembly, an endoscope sheath system with a compact structure and complete functions is formed. This design not only improves the convenience of surgical operation, but also makes the whole system easier to maintain and manage.

[0018] Easy installation and disassembly: The designs of the endoscope installation component and the instrument installation component enable the endoscope and the instrument to be easily installed and disassembled. In particular, the locking mechanism provided at the tail of the endoscope catheter can firmly install and lock the electrocision endoscope, preventing it from falling off or shifting during the operation. This design not only improves the safety of the operation but also facilitates the doctor's operation during the operation. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the electrocision endoscope sheath of the present invention;

[0020] Figure 2 is an internal structure diagram of the present invention;

[0021] Figure 3 is an overall structural diagram of the guide seat;

[0022] Figure 4 is a top view of the connecting end on the guide seat;

[0023] Figures 1 to 4 The reference numerals shown in the figure are respectively represented as: sheath tube assembly 1, outer sheath tube 11, inner sheath tube 12, tube wall 121, water passing groove 122, visible endoscope sheath head 13, instrument guiding hole 131, endoscope guiding hole 132, water passing through hole 14, endoscope catheter 2, instrument valve 3, instrument catheter 4, mounting seat 5, guide seat 6, instrument guiding hole 61, endoscope guiding hole 62, water inlet valve 7, water outlet valve 8, electrocision endoscope locking mechanism 9. Detailed Implementation Modes

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0025] I. Composition Structure

[0026] Refer to Figures 1-2 , the electrocision endoscope sheath in this embodiment mainly includes the following components: sheath tube assembly 1, endoscope catheter 2, instrument valve 3, instrument catheter 4, mounting seat 5, guide seat 6, water inlet valve 7, water outlet valve 8, and electrocision endoscope locking mechanism 9.

[0027] Sheath tube assembly 1:

[0028] Outer sheath tube 11: As the main structure, it provides protection and support.

[0029] Inner sheath tube 12: It is arranged inside the outer sheath tube 11 and includes an integrally formed tube wall 121 and water passing grooves 122 symmetrically arranged on the left and right sides. The water passing grooves 122 are respectively connected to the water inlet valve 7 and the water outlet valve 8 to form a water flow channel, increasing the water passing flow rate per unit time. And through the design of the water passing through holes 14 extending to one end close to the instrument guiding hole 131, combined with the tail slope, the flushing strength is enhanced.

[0030] Water passing through holes 14: A plurality of them are arranged along the axial and radial directions at one end of the outer sheath tube 11, used for the inlet and outlet of water flow and blocking large pieces of tissue from entering the sheath tube.

[0031] Visual mirror sheath head 13: It is sleeved on the inner sheath tube 12 and includes an endoscope guiding hole 132 and an instrument guiding hole 131, which are respectively used to guide the insertion directions of the endoscope and surgical instruments.

[0032] Mounting seat 5:

[0033] It is designed with interfaces for plugging and installing the water inlet valve 7 and the water outlet valve 8, and connects the endoscope catheter 2 and the instrument catheter 4 through the built-in guiding seat 6. The guiding seat 6 is divided into an upper connection end and a lower connection end. The upper connection end is provided with an instrument guiding hole 61 and an endoscope guiding hole 62, corresponding to the instrument guiding hole 131 and the endoscope guiding hole 132 respectively, to ensure the accurate guiding of the instrument and the endoscope. The lower connection end is connected to the sheath tube assembly 1.

[0034] Guiding seat 6:

[0035] Refer to Figures 3-4 , an instrument guiding hole 61 and an endoscope guiding hole 62 are opened inside near the upper connection end to prevent the instrument and the endoscope from being stuck during the insertion process.

[0036] At least one water inlet / outlet is opened on the tube wall near the lower connection end, which is communicated with the water inlet valve 7 or the water outlet valve 8 to guide the water flow in and out of the sheath tube assembly 1.

[0037] Endoscope catheter 2:

[0038] One end is communicated to the guiding seat 6 through the mounting seat 5, and the other end is provided with an electrocision endoscope locking mechanism 9 for installing and locking the electrocision endoscope.

[0039] Instrument catheter 4:

[0040] One end is communicated to the guiding seat 6, and the other end is connected to a surgical instrument (such as an electrode) through the instrument valve 3 to ensure the stable transmission and guiding of the instrument.

[0041] II. Working principle

[0042] Installation and Locking: Insert the electrocision endoscope through the endoscope catheter 2 and lock and fix it using the electrocision endoscope locking mechanism 9. The surgical instrument is inserted through the instrument valve 3 and the instrument catheter 4 and guided to the instrument guiding hole 131 of the visual mirror sheath head 13 through the instrument guiding hole 61 of the guiding seat 6.

[0043] Water Flow Management: When the water inlet valve 7 is opened, water flows through the water inlet valve 7 into the guiding seat 6, then flows into the sheath assembly 1 through the water passing groove 122 of the inner sheath tube 12, and flows out through the water passing through hole 14 to clean the surgical site. The sewage and waste liquid after cleaning are discharged through the water outlet valve 8.

[0044] Surgical Operation: Under a clear surgical field of view, the doctor can accurately perform surgical operations, and at the same time use the flushing effect of the water flow to keep the surgical area clean.

[0045] Through the above specific implementation manners, the electrocision endoscope sheath of the present utility model realizes efficient cleaning and clear vision during the surgical process, and at the same time ensures the stable installation and guiding of the endoscope and the surgical instrument, improving the safety and efficiency of the surgery.

[0046] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electrocision endoscope sheath, characterized in that, Comprising: A mounting base (5), a sheath tube assembly (1), a guiding base (6), a water valve assembly, an instrument mounting assembly, and an endoscope mounting assembly, which are respectively sleeved inside the mounting base (5); the sheath tube assembly (1) is communicated with the instrument mounting assembly and the endoscope mounting assembly respectively through the guiding base (6); the water valve assembly is communicated with the side end of the guiding base (6); The sheath tube assembly (1) includes a visual mirror sheath head (13) and an outer sheath tube (11) connected in sequence. A plurality of water passing through holes (14) are axially and radially formed at the head of the outer sheath tube (11). An inner sheath tube (12) is arranged inside the outer sheath tube (11). The inner sheath tube (12) includes a tube wall (121) and water passing grooves (122) symmetrically arranged on both sides of the tube wall (121). One end of the water passing groove (122) with a slope is communicated with the water passing through hole (14), and the other end of the water passing groove (122) is communicated with the water valve assembly.

2. The endoscopic resection sheath according to claim 1, characterized in that, The visual mirror sheath head (13) includes an instrument guiding hole (131) and an endoscope guiding hole (132). The endoscope guiding hole (132) guides the moving direction of the endoscope, and the instrument guiding hole (131) guides the moving direction of the instrument.

3. The endoscopic resection sheath according to claim 2, characterized in that, The guiding base (6) is internally provided with an instrument guiding hole (61) and an endoscope guiding hole (62) near its upper connection end. The instrument guiding hole (61) guides the instrument to move towards the instrument guiding hole (131), and the endoscope guiding hole (62) guides the endoscope to move towards the endoscope guiding hole (132).

4. The endoscopic resection sheath according to claim 1, characterized in that, The water valve assembly includes a water inlet valve (7). The water inlet valve (7) is communicated with the water passing groove (122) on one side of the inner sheath tube (12) through the guiding base (6). The water inlet valve (7) controls the water flow flowing into the sheath tube assembly (1).

5. The endoscopic resectoscope sheath according to claim 4, characterized in that, The water valve assembly further includes a water outlet valve (8). The water outlet valve (8) is communicated with the water passing groove (122) on the other side of the inner sheath tube (12) through the guiding base (6). The water outlet valve (8) controls the discharge of sewage and waste liquid generated by surgical cleaning of the sheath tube assembly (1).

6. The endoscopic resection sheath according to claim 1, wherein The endoscope mounting assembly includes an endoscope catheter (2). The head of the endoscope catheter (2) is communicated to the guiding base (6) through the mounting base (5).

7. The endoscopic resection sheath according to claim 6, characterized in that, A locking mechanism (9) is arranged at the tail of the endoscope catheter (2). The locking mechanism (9) mounts and locks the electrocision endoscope.

8. The endoscopic resection sheath according to claim 3, characterized in that, The instrument mounting assembly includes an instrument catheter (4). One end of the instrument catheter (4) is communicated with the guiding base (6). The instrument is respectively connected to the instrument catheter (4), the instrument guiding hole (61), and the instrument guiding hole (131).

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