Puncture outfit capable of separating sleeve assembly

Abstract

The utility model discloses a puncture outfit with a separable cannula component, which comprises a puncture outfit body, the puncture outfit body is composed of an obturator component, a cannula component and an outer cover component, the cannula component is connected with the outer cover component, and the obturator component is inserted into the cannula component and the outer cover component. The outer cover assembly is composed of a valve body, an outer cover, a sealing cover, a sealing ring and a duckbill, and the sleeve assembly is composed of a sleeve body, a sleeve large end, an outer sleeve and a sleeve pipeline. By designing a symmetrical slideway self-locking structure, disassembly and reassembly can become very simple, a doctor only needs to install the outer cover assembly and the sleeve together through left and right hand cooperation, and even does not need to align the position with eyes; the situation that the attention of a doctor is transferred from an endoscope display screen to disassembly and reassembly of the sleeve assembly is avoided, the doctor can pay attention to the operation condition through the endoscope display at any time, and the operation process is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of puncture instruments, and more specifically to a puncture instrument with a detachable sleeve assembly. Background Art

[0002] Disposable puncture products are mainly used in minimally invasive surgery. They are mainly composed of two components: the cannula component and the obstruction component. When in use, the obstruction component is inserted into the cannula component, and then the component is punctured through the skin of the abdomen. The obstruction component is pulled out, and the cannula component is left in the abdomen, thus forming a cannula channel so that doctors can insert various medical devices through this cannula channel for minimally invasive surgery. During surgery, it is often necessary to remove diseased tissue from the cannula channel.

[0003] There are seals in the cannula assembly, which will affect the removal of the diseased tissue, and the seals will be contaminated during the removal process, thus affecting subsequent surgery. Therefore, a new technical solution is needed to solve the problem. Utility Model Content

[0004] The utility model aims to provide a trocar with a detachable sleeve assembly, which solves the problem that the sleeve assembly has a seal which affects the removal of the diseased tissue and contaminates the seal during the removal process, thus affecting subsequent surgery.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a puncture device with a detachable sleeve assembly, comprising: a puncture device body, the puncture device body is composed of a blocker assembly, a sleeve assembly and an outer cover assembly, the sleeve assembly and the outer cover assembly are connected and the blocker assembly is plugged into the sleeve assembly and the outer cover assembly, the outer cover assembly is composed of a valve body, an outer cover, a sealing cover, a sealing ring and a duckbill, the sleeve assembly is composed of a sleeve body, a large end of the sleeve, an outer sleeve and a sleeve pipe, the large end of the sleeve is provided with a slideway and a mounting groove, the slideway is provided with a positive slope, a high point and an inverted slope, the outer cover includes an outer cover wall and an outer cover center hole in the outer cover wall, and the inner surface of the outer cover wall has two bosses for weighing.

[0006] As a preferred embodiment of the utility model, a one-way valve, an indicating balloon, a fixing ring, a limiting balloon and a connecting tube are installed on the sleeve pipe.

[0007] As a preferred embodiment of the present invention, the valve body is located on the side of the casing pipe.

[0008] As a preferred embodiment of the present invention, a mounting column is provided on the side of the casing pipe and the mounting column is located on the outer diameter of the casing pipe.

[0009] As a preferred embodiment of the present utility model, a rubber ring is arranged inside the mounting groove on the large end of the sleeve.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model puncture device is composed of an obstruction assembly and a sleeve assembly; when the puncture device punctures, the obstruction assembly is inserted into the sleeve assembly, and after penetrating the skin, the obstruction assembly is pulled out of the sleeve assembly, and the sleeve assembly remains on the skin, and the sleeve assembly is composed of an outer cover assembly and a sleeve, and the outer cover assembly is composed of a valve body, an outer cover, a sealing cover, a sealing ring, and a duckbill; the sleeve pipeline is composed of a large end of the sleeve and a sleeve pipeline, and a one-way valve, an indicating balloon, a fixing ring, a limiting balloon and a connecting pipe are installed on the sleeve pipeline, and an outer cover wall and an outer cover center hole in the outer cover wall are provided on the outer cover, and two bosses for weighing are provided on the inner surface of the outer cover wall; a slideway and a mounting groove are provided on the large end of the sleeve on the sleeve, and a positive inclined surface, a high point and an inverted inclined surface are provided on the slideway; when locking is required, the outer cover assembly is rotated clockwise, and the boss on the outer cover slides over the high point through the positive inclined surface, and then slides along the inverted inclined surface until it can no longer slide, and at this time the boss is stuck in the slideway, so that the outer cover assembly and the sleeve are connected together. When it needs to be disengaged, the outer cover assembly is rotated counterclockwise with force, and the boss on the outer cover slides along the inverted slope over the high point and continues to slide along the positive slope until the sleeve and the outer cover assembly are separated, at which time the outer cover assembly and the sleeve are disengaged; the mounting column is located on the sleeve pipe, which is located on the outer diameter of the sleeve pipe, and is used to disassemble and reassemble the sleeve to facilitate holding the sleeve; the mounting groove on the sleeve is used to install the rubber ring, and the rubber ring is used for sealing when the sleeve and the outer cover assembly are locked. By designing a symmetrical slide self-locking structure, disassembly and reassembly can be made very simple. The doctor only needs to use his left and right hands to install the outer cover assembly and the sleeve together, and the doctor does not even need to use his eyes to align the position, avoiding the doctor's attention from being diverted from the endoscope display screen to the disassembly and reassembly of the sleeve assembly, allowing the doctor to pay attention to the surgical situation at all times through the endoscope display, thereby speeding up the surgical process; by designing the inverted slope, it can be prevented that the sleeve assembly is misoperated, causing the outer cover assembly and the sleeve to be disengaged, thereby affecting the surgical process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the casing pipeline structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the outer sleeve structure of the utility model.

[0016] In the figure: 1. blocker assembly; 2. sleeve assembly; 3. outer cover assembly; 4. valve body; 5. one-way valve; 6. sleeve; 7. sleeve pipe; 8. indicator balloon; 9. fixing ring; 10. limit balloon; 11. sealing cover; 12. sealing ring; 13. duckbill; 14. connecting pipe; 15. rubber ring; 16. outer sleeve; 17. large end of sleeve; 18. mounting column; 19. slideway; 20. boss; 21. outer cover wall; 22. outer cover center hole; 23. mounting groove; 24. high point; 25. positive slope. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4The utility model provides a technical solution: a puncture device with a detachable sleeve assembly, comprising: a puncture device body, the puncture device body is composed of an obstruction assembly 1, a sleeve assembly 2 and an outer cover assembly 3, the sleeve assembly 2 and the outer cover assembly 3 are connected and the obstruction assembly 1 is plugged into the sleeve assembly 2 and the outer cover assembly 3, the outer cover assembly 3 is composed of a valve body 4, an outer cover, a sealing cover 11, a sealing ring 12 and a duckbill 13, the sleeve assembly 2 is composed of a sleeve body 6, The sleeve is composed of a large end 17, an outer sleeve 16 and a sleeve pipe 7. The large end 17 of the sleeve is provided with a slideway 19 and a mounting groove 23. The slideway 19 is provided with a positive slope 25, a high point 24 and an inverted slope. The outer cover includes an outer cover wall 21 and an outer cover center hole 22 in the outer cover wall 21. The inner surface of the outer cover wall 21 has two bosses 20 for weighing. The puncture device is composed of an obstruction device assembly 1 and a sleeve assembly 2. When the puncture device is punctured, the obstruction device 1 is inserted into the sleeve assembly 2, and the puncture device is inserted into the sleeve assembly 2. After penetrating the skin, the obturator assembly 1 is pulled out of the sleeve assembly 2, and the sleeve assembly 2 remains on the skin. The sleeve assembly 2 is composed of an outer cover assembly 3 and a sleeve, and the outer cover assembly 3 is composed of a valve body 4, an outer cover, a sealing cover 11, a sealing ring 12, and a duckbill 13; the sleeve pipeline 7 is composed of a sleeve large end 17 and a sleeve pipeline 7, and a one-way valve 5, an indicating balloon 8, a fixing ring 9, a limiting balloon 10 and a connecting pipe 14 are installed on the sleeve pipeline 7, and the outer cover has an outer cover wall 21 and an inner portion of the outer cover wall 21. The outer cover center hole 22, the inner surface of the outer cover wall 21 has two bosses 20 for weighing; the sleeve large end 17 on the sleeve is provided with a slideway 19 and a mounting groove 23, and the slideway 19 has a positive slope 25, a high point 24 and a reverse slope; when locking is required, the outer cover assembly 3 is rotated clockwise, the boss 20 on the outer cover slides over the high point 24 through the positive slope 25, and then slides along the reverse slope until it can no longer slide, at which time the boss 20 is stuck in the slideway 19, so that the outer cover assembly 3 and the sleeve are connected together. When it is necessary to disengage, the outer cover assembly 3 is rotated counterclockwise with force, and the boss 20 on the outer cover slides along the inverted slope over the high point 24 and then continues to slide along the positive slope 25 until the sleeve is separated from the outer cover assembly 3. At this time, the outer cover assembly 3 and the sleeve are disengaged; the mounting column 18 is located on the sleeve pipe 7, which is located on the outer diameter of the sleeve pipe 7 and is used for disassembling and reassembling the sleeve to facilitate holding the sleeve; the mounting groove 23 on the sleeve is used to install the rubber ring 15, and the rubber ring 15 is used for sealing when the sleeve and the outer cover assembly 3 are locked.

[0019] Further improvements, such as Figure 1 As shown: the sleeve pipe 7 is installed with a one-way valve 5, an indicating balloon 8, a fixing ring 9, a limiting balloon 10 and a connecting pipe 14.

[0020] Further improvements, such as Figure 1 As shown: the valve body 4 is located on the side of the sleeve pipe 7.

[0021] Further improvements, such as Figure 2As shown: a mounting post 18 is provided on the side of the sleeve pipe 7 and the mounting post 18 is located on the outer diameter of the sleeve pipe 7, which is used for disassembling and reassembling the sleeve to facilitate holding the sleeve.

[0022] Further improvements, such as Figure 2 As shown: a rubber ring 15 is arranged inside the mounting groove 23 on the large end 17 of the sleeve, and the rubber ring 15 is used for sealing when the sleeve and the outer cover assembly 3 are locked.

[0023] Working principle: The puncture device is composed of an obstruction component 1 and a sleeve component 2; when the puncture device is punctured, the obstruction component 1 is inserted into the sleeve component 2, and after penetrating the skin, the obstruction component 1 is pulled out of the sleeve component 2, and the sleeve component 2 remains on the skin. The sleeve component 2 is composed of an outer cover component 3 and a sleeve, and the outer cover component 3 is composed of a valve body 4, an outer cover, a sealing cover 11, a sealing ring 12, and a duckbill 13; the sleeve pipe 7 is composed of a sleeve large end 17 and a sleeve pipe 7, and the sleeve pipe 7 is installed with a one-way valve 5, an indicating balloon 8, a fixing ring 9, and a limiting balloon 10 And the connecting pipe 14, the outer cover is provided with an outer cover wall 21 and an outer cover center hole 22 in the outer cover wall 21, and the inner surface of the outer cover wall 21 has two bosses 20 for weighing; the sleeve large end 17 on the sleeve is provided with a slideway 19 and a mounting groove 23, and the slideway 19 is provided with a positive bevel 25, a high point 24 and a reverse bevel; when locking is required, the outer cover assembly 3 is rotated clockwise, the boss 20 on the outer cover slides over the high point 24 through the positive bevel 25, and then slides along the reverse bevel until it can no longer slide, at which time the boss 20 is stuck in the slideway 19, so that the outer cover assembly 3 and the sleeve are connected together. When it is necessary to disengage, the outer cover assembly 3 is rotated counterclockwise with force, and the boss 20 on the outer cover slides along the inverted slope over the high point 24 and then continues to slide along the positive slope 25 until the sleeve and the outer cover assembly 3 are separated, at which time the outer cover assembly 3 and the sleeve are disengaged; the mounting column 18 is located on the sleeve pipe 7, which is located on the outer diameter of the sleeve pipe 7 and is used to disassemble and reassemble the sleeve to facilitate holding the sleeve; the mounting groove 23 on the sleeve is used to install the rubber ring 15, and the rubber ring 15 is used for sealing when the sleeve and the outer cover assembly 3 are locked. Through the symmetrical design The self-locking structure of the slide 19 can make disassembly and reassembly very simple. The doctor only needs to use his left and right hands to install the outer cover assembly 3 and the sleeve together, and does not even need to use his eyes to align the position, thereby avoiding the doctor's attention from being transferred from the endoscope display screen to the disassembly and reassembly of the sleeve assembly 2, allowing the doctor to pay attention to the surgical situation at all times through the endoscope display, thereby speeding up the surgical process; by designing the inverted bevel, it can prevent the sleeve assembly 2 from being misoperated, causing the outer cover assembly 3 and the sleeve to disengage, thereby affecting the surgical process.

[0024] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A trocar with a detachable cannula assembly, characterized in that: include: The puncture device body is composed of an obstruction assembly (1), a sleeve assembly (2) and an outer cover assembly (3), wherein the sleeve assembly (2) and the outer cover assembly (3) are connected and the obstruction assembly (1) is inserted into the sleeve assembly (2) and the outer cover assembly (3), wherein the outer cover assembly (3) is composed of a valve body (4), an outer cover, a sealing cover (11), a sealing ring (12) and a duckbill (13), wherein the sleeve assembly (2) is composed of the sleeve body The casing is composed of a body (6), a large end of the casing (17), an outer casing (16) and a casing pipe (7); the large end of the casing (17) is provided with a slideway (19) and a mounting groove (23); the slideway (19) is provided with a positive slope (25), a high point (24) and a reverse slope; the outer cover comprises an outer cover wall (21) and an outer cover center hole (22) in the outer cover wall (21); the inner surface of the outer cover wall (21) is provided with two bosses (20) for weighing.

2. A trocar with a detachable cannula assembly according to claim 1, characterized in that: The sleeve pipe (7) is installed with a one-way valve (5), an indicating balloon (8), a fixing ring (9), a limiting balloon (10) and a connecting pipe (14).

3. The trocar with a detachable cannula assembly according to claim 1, characterized in that: The valve body (4) is located on the side of the casing pipe (7).

4. The trocar with a detachable cannula assembly according to claim 1, characterized in that: A mounting column (18) is provided on the side of the casing pipe (7), and the mounting column (18) is located on the outer diameter of the casing pipe (7).

5. The trocar with a detachable cannula assembly according to claim 1, characterized in that: A rubber ring (15) is arranged inside the mounting groove (23) on the large end (17) of the sleeve.

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