Laparoscope protective sleeve

Abstract

The utility model belongs to the technical field of medical instruments, and particularly discloses a protective sleeve for a laparoscope. The sleeve head is used for installing a lens, and a lens anti-falling step is arranged at the top end of the sleeve head; one end of the casing pipe is inserted into the casing pipe head, the casing pipe is detachably connected with the casing pipe head, and a hoop pressing open groove is formed in the casing pipe; the casing pipe seat is arranged on the periphery of the casing pipe in a sleeving mode, a through hole for containing the casing pipe is formed in the middle of the casing pipe seat, a hoop installation groove is formed in the outer wall of the casing pipe seat, and the hoop installation groove and the hoop pressing open groove are arranged correspondingly; and the hoop is arranged in the hoop mounting groove and the hoop pressing open groove and is used for pressing the sleeve on the sleeve seat. According to the utility model, the lens of the laparoscope is efficiently protected, the lens can be prevented from fogging, and meanwhile, the stability in an operation process and the operation convenience are provided.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and more specifically, relates to a laparoscope protective cover. Background Art

[0002] In the field of minimally invasive surgery, laparoscopic surgery is widely adopted due to its minimal trauma and rapid recovery. Protecting the laparoscopic lens is particularly important in this type of surgery to ensure image clarity and the functionality of the surgical instruments during surgery. Existing laparoscopic protective sleeve designs typically consist of a cannula and a cannula head that secures the lens, but these designs have limitations. Furthermore, the temperature difference between the laparoscope entering the body from outside the body can easily cause the lens to fog, affecting the operator's vision.

[0003] For example, patent document CN219374614U describes a laparoscope protective cover, which includes a sleeve for fixing the lens and a protective cover. However, the design lacks an effective anti-slip mechanism, which can easily cause the lens to fall off during surgery, affecting the safety and efficiency of the operation. In addition, patent document US2014 / 0123789A1 proposes a laparoscope protective cover with a fixed clamp, but its clamp design is relatively simple and cannot adapt to sleeves of different diameters, limiting its versatility on different surgical instruments. In order to solve the above problems, some improvement measures have been proposed in the prior art. For example, patent document EP2345678B1 introduces a laparoscope protective cover with a lens inlay groove made of elastic material to improve the stability of the lens. Despite this, these designs still fail to provide a solution that can adapt to sleeves of different diameters and provide stable sealing performance. Utility Model Content

[0004] In response to the above-mentioned defects or improvement needs of the existing technology, the present invention provides a laparoscope protective cover, which combines the characteristics of the laparoscope itself and its working characteristics to design a stable and adjustable fixing mechanism. The structure and specific setting methods of its key components such as the cannula head, cannula, cannula seat and clamp are studied and designed. Accordingly, the stability of the lens during use is ensured, and the lens is prevented from falling off and fogging due to surgical operations, thereby improving the safety and reliability of the operation. At the same time, the detachable connection between the cannula and the cannula head facilitates the rapid replacement and maintenance of the lens, enhancing the practicality and maintenance convenience of the product.

[0005] To achieve the above objectives, the present invention provides a laparoscope protective cover, comprising:

[0006] A sleeve head for installing a lens, wherein the top end of the sleeve head is provided with a lens-preventing step;

[0007] A sleeve, one end of which is inserted into the sleeve head, and the sleeve is detachably connected to the sleeve head, and the sleeve is provided with a clamping groove;

[0008] A sleeve seat is sleeved on the outer periphery of the sleeve, a through hole for accommodating the sleeve is provided in the middle of the sleeve seat, and a clamp mounting groove is provided on the outer wall of the sleeve seat, and the clamp mounting groove is corresponding to the clamp pressing groove; and

[0009] A clamp is provided in the clamp installation groove and the clamp pressing groove and is used for pressing the sleeve onto the sleeve seat.

[0010] As a further preference, a lens inlay groove is provided on the inner wall of the top end of the sleeve head, and the lens inlay groove is made of elastic material.

[0011] As a further preferred embodiment, a sleeve head mounting step is provided on the sleeve, and the sleeve head mounting step is used to be inserted into the sleeve and snap-fitted with the inner wall of the sleeve.

[0012] As a further preferred embodiment, the through hole in the sleeve seat includes a first through hole and a second through hole that are connected and coaxially arranged, the diameter of the first through hole is the same as the outer wall diameter of the sleeve, and the diameter of the second through hole is smaller than the outer wall diameter of the sleeve. In this way, a sleeve stop step for limiting the movement of the sleeve is formed at the connection between the first through hole and the second through hole.

[0013] As a further preferred embodiment, the end of the second through hole is used to connect to a nitrogen filling device, and the nitrogen filling device is used to fill nitrogen with a specified flow rate and concentration into the casing head and the casing.

[0014] As a further preference, a backflow blocking groove is further provided at one end of the casing seat close to the casing head, and the backflow blocking groove is a frustum structure.

[0015] As a further preferred embodiment, the clamp includes a locking frame arranged around the clamp installation groove and a clamp clamp block arranged on the locking frame, and the clamp clamp block is arranged in the clamp clamping groove.

[0016] As a further preference, the top end of the casing head is a sloped surface.

[0017] In general, the above technical solutions conceived by the present invention have the following technical advantages compared with the existing technology:

[0018] 1. This utility model ensures the stability of the lens during use through the lens anti-drop step design on the cannula head, preventing the lens from falling during surgical operations, thereby improving the safety and reliability of the operation. At the same time, the detachable connection between the cannula and the cannula head facilitates quick lens replacement and maintenance, enhancing the product's practicality and ease of maintenance.

[0019] 2. In order to prevent the lens from fogging, the present invention will fill the cannula with nitrogen when inserting the laparoscope to prevent the lens on the laparoscope from fogging.

[0020] 3. The utility model effectively prevents the backflow of liquid during surgery, reduces the pollution to the surgical area, and improves the cleanliness and safety of the surgery.

[0021] 4. The protective cover of the utility model provides a stable and adjustable fixing mechanism. The clamp, through the design of its locking frame and clamping block, can tightly press the cannula onto the cannula seat, ensuring the stability and sealing of the protective cover during laparoscopic surgery. This design allows the doctor to quickly adjust the pressure of the clamp as needed during the operation to adapt to cannulas of different diameters, thereby improving the versatility and adaptability of surgical instruments. In addition, the adjustability of the clamp also helps to reduce the time of instrument replacement during surgery and improve surgical efficiency. Through this structural optimization, the laparoscopic protective cover not only enhances safety during surgery, but also improves the overall success rate of the operation by reducing potential equipment failures and surgical interruptions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a laparoscope protective sleeve according to an embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional view of a laparoscope protective sleeve according to an embodiment of the present utility model;

[0024] Figure 3 It is a structural schematic diagram of a casing head involved in an embodiment of the present utility model;

[0025] Figure 4 It is a structural schematic diagram of the sleeve involved in the embodiment of the utility model;

[0026] Figure 5 It is a structural schematic diagram of a sleeve seat involved in an embodiment of the utility model.

[0027] In all the drawings, the same reference numerals represent the same technical features, specifically: 1-sleeve head, 2-sleeve, 3-sleeve seat, 4-hoop, 5-lens, 6-lens anti-drop step, 7-lens inlay groove, 8-sleeve head installation step, 9-hoop pressing groove, 10-backflow blocking groove, 11-sleeve mounting surface, 12-sleeve stop step, 13-hoop clamping block. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0029] like Figures 1 to 5 As shown, a laparoscope protective cover provided by an embodiment of the present invention includes: a cannula head 1 for installing a lens 5, the top end of the cannula head 1 is provided with a lens anti-detachment step 6; a cannula 2, one end of the cannula 2 is inserted into the cannula head 1, and the cannula 2 is detachably connected to the cannula head 1, and the cannula 2 is provided with a clamp pressing groove 9; a cannula seat 3 sleeved on the outer periphery of the cannula 2, the middle part of the cannula seat 3 is provided with a through hole for accommodating the cannula 2, and the outer wall of the cannula seat 3 is provided with a clamp mounting groove, and the clamp mounting groove is corresponding to the clamp pressing groove 9; and a clamp 4 provided in the clamp mounting groove and the clamp pressing groove 9, for pressing the cannula 2 onto the cannula seat 3.

[0030] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, a lens embedding groove 7 is provided on the inner wall of the top end of the cannula head 1. This lens embedding groove 7 is made of an elastic material. Preferably, in one embodiment, the cannula head 1 is made of high-strength plastic or metal, and the top end is designed with a lens anti-drop step 6. This step can be an annular protrusion that mates with the edge of the lens 5 to prevent the lens from falling off during surgery. The lens 5 is connected to the lens embedding groove 7 at the top end of the cannula head 1 via a slot or thread. The inner wall of this groove is made of an elastic material, such as silicone, to ensure the stability and shock resistance of the lens.

[0031] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, a cannula head mounting step 8 is provided on the cannula 2, and the cannula head mounting step 8 is used to be inserted into the cannula 2 and clamped with the inner wall of the cannula 2. Preferably, in one embodiment, the cannula 2 is made of medical-grade stainless steel, with a cannula head mounting step 8 designed at one end and a clamp clamping groove 9 at the other end for cooperating with the clamp 4. The cannula 2 is inserted into the cannula head 1 through the cannula head mounting step 8 and is connected to the inner wall of the cannula head 1 through a clamping groove or a thread. Preferably, the top end of the cannula head 1 is a sloped surface, which helps in the smooth insertion and removal of surgical instruments, reduces damage to surrounding tissues, and is also convenient for cleaning and disinfection, thereby improving the efficiency and hygiene standards of surgical instruments.

[0032] Based on any or a combination of the above embodiments, in this embodiment, the through-hole in the sleeve seat 3 includes a first through-hole and a second through-hole that are interconnected and coaxially arranged. The diameter of the first through-hole is the same as the outer diameter of the sleeve 2, while the diameter of the second through-hole is smaller than the outer diameter of the sleeve 2. In this manner, a sleeve stop step 12 is formed at the junction of the first and second through-holes to restrict the movement of the sleeve 2. Preferably, in one embodiment, the sleeve seat 3 is made of durable plastic or metal. The central through-hole is designed with two coaxial through-holes: the first through-hole has the same diameter as the outer diameter of the sleeve 2, while the second through-hole has a smaller diameter, forming the sleeve stop step 12. The sleeve seat 3 has a clamp mounting groove corresponding to the clamp pressing groove 9 on the sleeve 2. The clamp 4 secures the sleeve 2 to the sleeve seat 3 by means of bolts passing through the mounting groove and the pressing groove. In one embodiment, the sleeve stop step 12 is asymmetrically designed, with one side being steeper and the other side being more gradual, to provide different tightening forces to accommodate sleeves 2 of different diameters.

[0033] Based on any one or more of the foregoing embodiments, in this embodiment, the end of the second through hole is connected to a nitrogen charging device, which is used to charge nitrogen at a specified flow rate and concentration into the cannula head 1 and cannula 2. Preferably, in one embodiment, the nitrogen charging device includes a micro air pump and a flow meter, and is a compact module that can be directly mounted on the side of the cannula base 3. The nitrogen charging device is connected to the end of the second through hole via a hose, the other end of which is connected to the interior of the cannula head 1 and cannula 2 to enable nitrogen charging.

[0034] Based on any or a combination of the above embodiments, in this embodiment, the end of the sleeve seat 3 near the sleeve head 1 is further provided with a backflow prevention groove 10. This backflow prevention groove 10 has a frustum-shaped structure. Preferably, in one embodiment, the backflow prevention groove 10 is designed as a frustum-shaped structure with a series of internal guide grooves to guide liquid flow along a specific path and reduce the possibility of liquid backflow. The backflow prevention groove 10 is directly formed on the end of the sleeve seat 3 near the sleeve head 1, forming a sealing fit with the outer wall of the sleeve 2.

[0035] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the clamp 4 includes a locking frame arranged around the clamp mounting groove and a clamp clamping block 13 arranged on the locking frame, and the clamp clamping block 13 is arranged in the clamp pressing groove 9. Preferably, in one embodiment, the clamp 4 is made of metal or high-strength plastic, and includes a locking frame and a clamp clamping block 13. The locking frame is arranged around the clamp mounting groove, and the clamp clamping block 13 is located on the locking frame and can be inserted into the clamp pressing groove 9. The clamp 4 is connected to the clamp mounting groove of the sleeve seat 3 by bolts and nuts, and the clamp clamping block 13 cooperates with the clamp pressing groove 9 of the sleeve 2 through an elastic material or a spring mechanism to achieve a pressing function.

[0036] Based on any one or more of the above embodiments, in this embodiment, a series of heat dissipation fins are designed on the outer wall of the cannula holder 3 to improve heat exchange efficiency with the external environment and reduce local overheating during surgery. A non-slip pad is designed on the bottom of the cannula holder 3 to increase friction with the operating table and prevent slipping.

[0037] In the above embodiment, the lens is installed in the cannula head, stuck in the lens mounting groove, and the lower end is attached to the lens anti-slip step, and then fixed with medical glue. When the cannula is installed, the cannula head installation step is inserted into the cannula head, and the step surface is in close contact with the end face of the cannula head. The clamping groove of the clamp is to make room for the clamping block on the cannula seat. When the clamp is tightened, the clamping block on the cannula seat is pressed down from the clamping groove position, pressing the laparoscope tube wall inside the cannula, playing a fixing role. The entire device has the function of protecting the internal laparoscope. Workflow: Before the operation, the laparoscope is inserted into the protective cannula, the clamp is locked, and the laparoscope is fixed in the protective cannula. The surgical operation can be performed by holding the protective cannula. In order to prevent the lens from fogging, nitrogen will be filled into the cannula when the laparoscope is inserted to prevent the lens on the laparoscope from fogging.

[0038] In summary, the device of the present invention can 1. protect the laparoscope from being contaminated without hindering the normal operation of the laparoscope. At the same time, it can overcome the technical problems in the prior art that there is a temperature difference when the laparoscope enters the body from the outside of the body and the lens fogs up.

[0039] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A laparoscope protective cover, characterized in that: include: A sleeve head (1) for mounting a lens (5), wherein a lens anti-dropping step (6) is provided at the top end of the sleeve head (1); A sleeve (2), one end of the sleeve (2) is inserted into the sleeve head (1), and the sleeve (2) is detachably connected to the sleeve head (1), and a clamping groove (9) is provided on the sleeve (2); A sleeve seat (3) is sleeved on the outer periphery of the sleeve (2), a through hole for accommodating the sleeve (2) is provided in the middle of the sleeve seat (3), a clamp mounting groove is provided on the outer wall of the sleeve seat (3), and the clamp mounting groove is arranged corresponding to the clamp pressing groove (9); and A clamp (4) is provided in the clamp installation groove and the clamp pressing groove (9) and is used for pressing the sleeve (2) onto the sleeve seat (3).

2. A laparoscope protective cover according to claim 1, characterized in that: A lens inlay groove (7) is provided on the inner wall of the top end of the sleeve head (1), and the lens inlay groove (7) is made of elastic material.

3. The laparoscope protective cover according to claim 1, characterized in that: The sleeve (2) is provided with a sleeve head mounting step (8), which is used to be inserted into the sleeve (2) and snap-fitted with the inner wall of the sleeve (2).

4. The laparoscope protective cover according to claim 1, characterized in that: The through hole in the sleeve seat (3) includes a first through hole and a second through hole that are connected and coaxially arranged, the diameter of the first through hole being the same as the outer wall diameter of the sleeve (2), and the diameter of the second through hole being smaller than the outer wall diameter of the sleeve (2), so that a sleeve stop step (12) for limiting the movement of the sleeve (2) is formed at the connection between the first through hole and the second through hole.

5. The laparoscope protective cover according to claim 4, characterized in that: The end of the second through hole is used to connect a nitrogen filling device, and the nitrogen filling device is used to fill nitrogen with a specified flow rate and concentration into the casing head (1) and the casing (2).

6. The laparoscope protective cover according to claim 1, characterized in that: A backflow blocking groove (10) is further provided at one end of the casing seat (3) close to the casing head (1), and the backflow blocking groove (10) is a frustum structure.

7. The laparoscope protective cover according to claim 1, characterized in that: The clamp (4) comprises a locking frame arranged around the clamp installation groove and a clamp clamp block (13) arranged on the locking frame, and the clamp clamp block (13) is arranged in the clamp pressing groove (9).

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