Detachable soft rubber structure for puncture outfit

Abstract

The invention relates to the field of medical instruments, in particular to a detachable soft rubber structure for a puncture outfit, which comprises a sealing cover, a self-adjusting sealing cap, a choke valve and a puncture cannula, the self-adjusting sealing cap is arranged above the choke valve, the choke valve is arranged in a top opening of the puncture cannula, the choke valve and the puncture cannula are made of soft rubber materials, and the sealing cover is detachably connected with the puncture cannula. A through hole is formed in the top of the sealing cover, a clamping groove is formed in the outer wall of the top of the puncture cannula, an opening is formed in the clamping groove, the clamping groove is gradually narrowed from the opening in the closing direction of the sealing cover, a buckle matched with the clamping groove of the puncture cannula is arranged on the inner wall of the lower end of the sealing cover, and the sealing cover and the puncture cannula are rotationally clamped and connected through mutual matching of the clamping groove and the buckle. The connecting reliability and the sealing performance are guaranteed, the assembling technology is simplified and rapid, and convenience and elasticity of taking out other specimens in an emergency in an operation are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a detachable soft rubber structure for a puncture device. Background Art

[0002] Laparoscopic surgery has gradually replaced traditional surgery due to its advantages such as less trauma, less physiological interference to patients, good cosmetic effect, less pain, and faster recovery. It has been widely used in general surgery, gynecology, and cardiothoracic surgery. Laparoscopic surgery requires opening a hole in the patient's abdomen and performing the surgery under laparoscopic observation. Fascia suture is required after the surgery. Fascia suture is difficult to suture due to its small incision and deep inner wall. Currently, puncture sutures are used to complete postoperative suturing work, but existing puncture sutures have many parts, a complex internal structure, and a high probability of failure.

[0003] In the existing cannula assembly of the puncture device, a compression spring, a support rod and a positioning pin are also installed. The compression spring and the support rod are in contact with each other and are arranged between the lower cover of the cannula and the upper cover of the cannula. The positioning pin is connected to the upper cover of the cannula as a whole and an interference fit is formed between the upper cover of the cannula and the lower cover of the cannula. Although this design can meet the surgical requirements, its structure is complex and difficult to disassemble. When an emergency occurs during the operation, the upper cover of the puncture device cannot be opened in time, which is not conducive to the doctor to remove a large volume of contaminants. In addition, this structure is expensive and has a high product quality, which is not conducive to reducing medical costs. Summary of the invention

[0004] The object of the present invention is to provide a detachable soft rubber structure for a puncture device to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a detachable soft rubber structure for a puncture device, comprising: a sealing cover, a self-adjusting sealing cap, an air-blocking valve, and a puncture sleeve, wherein the self-adjusting sealing cap is arranged above the air-blocking valve, and both are made of soft rubber material, the air-blocking valve is arranged in the top opening of the puncture sleeve, the sealing cover is detachably connected to the puncture sleeve, and a through hole is arranged at the top of the sealing cover, a card slot is arranged on the outer wall of the top of the puncture sleeve, the card slot is arranged with an opening, the card slot gradually narrows from the opening along the closing direction of the sealing cover, a buckle matching the card slot of the puncture sleeve is arranged on the inner wall of the lower end of the sealing cover, and the sealing cover and the puncture sleeve are rotatably connected by the card slot and the buckle cooperating with each other.

[0006] Furthermore, a groove is formed in the middle of the air-blocking valve, and its bottom protrudes downward. The cross-sectional thickness of the outer ring of the air-blocking valve is greater than the thickness of the bottom protrusion, and the bottom protrusion is an openable and closable structure. The bottom part of the protrusion at the lower end is equally divided into four identical quarter circles from the center of the circle, and the straight edge of each quarter circle is in close contact with the straight edge of its adjacent quarter circle. A groove is formed between the outer ring of the air-blocking valve and the bottom protrusion, and a circle of upward protrusions is provided on the inner side of the outer wall at the top of the puncture sleeve, and its size matches the groove on the air-blocking valve. When the air-blocking valve is placed on the puncture sleeve, the groove on the air-blocking valve is clamped on the protrusion on the puncture sleeve.

[0007] Furthermore, the bottom of the self-adjusting sealing cap protrudes downward, and the cross-sectional thickness of the outer ring of the self-adjusting sealing cap is greater than the thickness of the bottom protrusion, the bottom protrusion of the self-adjusting sealing cap matches a groove formed in the middle of the air blocking valve, and when the self-adjusting sealing cap is placed on the air blocking valve, the protrusion at the bottom of the self-adjusting sealing cap is in the groove in the middle of the air blocking valve, and a circle of groove is formed between the outer ring of the self-adjusting sealing cap and its bottom protrusion.

[0008] Furthermore, two symmetrical fixing columns are arranged along the central axis on the inner wall of the top surface of the sealing cover, and the distance between the two fixing columns is the same as the diameter of the groove on the upper surface of the self-adjusting sealing cap. When the sealing cover is installed on the puncture sleeve, the fixing columns on the inner wall of the top surface are located in the groove on the upper surface of the self-adjusting sealing cap. The sealing cover is rotatably clamped on the puncture sleeve, and the fixing columns rotate in the groove on the upper surface of the self-adjusting sealing cap.

[0009] Compared with the prior art, the present invention has the following advantages: (1) The present invention adopts a two-way interference fit design structure to connect the sealing cover with the self-adjusting sealing cap and the collection sleeve with the air blocking valve, which not only ensures the reliability and sealing of the connection, but also simplifies and speeds up the assembly process, and solves the problem of convenient and flexible emergency removal of other specimens during surgery.

[0010] (2) The present invention simplifies the mold manufacturing process, solves the problem of stable parts production parameters and low defect rate, simplifies the total number of instrument parts, simplifies assembly, optimizes the structure of existing instruments, reduces the number of parts, and simplifies quality control.

[0011] (3) The present invention adopts the process of making soft rubber by mold, which simplifies the production process of product parts, shortens the parts production cycle, greatly reduces the production cost, and ensures the quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of a disassembled soft rubber structure for a trocar.

[0013] Figure 2 Schematic diagram of the sealing cover.

[0014] Figure 3 Schematic diagram of the self-adjusting sealing cap.

[0015] Figure 4 Schematic diagram of a choke valve.

[0016] Figure 5 Schematic diagram of the puncture cannula.

[0017] Among them, 100, a sealing cover, 200, a self-adjusting sealing cap, 300, a gas blocking valve, 400, a puncture sleeve. DETAILED DESCRIPTION

[0018] The present invention aims to address the deficiencies of the prior art and provide a detachable soft rubber structure for a trocar, which is specifically achieved by the following technical solutions: Reference Figure 1 The present embodiment provides a detachable soft rubber structure for a puncture device, including: a sealing cover 100, a self-adjusting sealing cap 200, an air blocking valve 300, and a puncture sleeve 400, wherein the self-adjusting sealing cap 200 and the air blocking valve 300 are made of soft rubber material, the sealing cover 100 is detachably connected to the puncture sleeve 400, and a through hole is provided on the top of the sealing cover 100, through which a puncture cone and other equipment can pass.

[0019] Reference Figure 1 The top outer wall of the puncture sleeve 400 is provided with a slot, and the slot is provided with an opening. The slot gradually narrows from the opening along the closing direction of the sealing cover 100, and a buckle matching the slot of the puncture sleeve 400 is provided on the inner wall of the lower end of the sealing cover 100. The sealing cover 100 and the puncture sleeve 400 cooperate with each other through the slot and the buckle to rotate and connect. This design makes the sealing cover 100 of the present invention easy and convenient to disassemble from the puncture sleeve 400. If the initial installation position is incorrect, it is only necessary to continue to rotate the sealing cover 100 and wait for the buckle to fall into the correct slot opening position to complete the tightening work. It is easy for doctors to get started and there is no learning cost. Under the premise of not affecting the use effect of the equipment, the difficulty of installation of the equipment is greatly reduced. Compared with the use of more precise components such as springs and clips in the prior art to complete the locking function, the number and precision of parts of the device are reduced, the manufacturing cost is reduced, and the production yield is improved.

[0020] Reference Figure 1 The self-adjusting sealing cap 200 is arranged above the air blocking valve 300, and the air blocking valve 300 is arranged in the top opening of the puncture sleeve 400.

[0021] Reference Figure 4 , Figure 5A groove is formed in the middle of the air-blocking valve 300, and its bottom protrudes downward. The cross-sectional thickness of the outer ring of the air-blocking valve 300 is greater than the thickness of the bottom protrusion, and the bottom protrusion is an openable and closable structure. The bottom part of the protrusion at the lower end is equally divided into four identical quarter circles from the center of the circle, and the straight side of each quarter circle is in close contact with the straight side of the adjacent quarter circle. A groove is formed between the outer ring of the air-blocking valve 300 and the bottom protrusion, and a circle of upward protrusions is provided on the inner side of the outer wall at the top of the puncture sleeve 400, and its size matches the groove on the air-blocking valve 300. When the air-blocking valve 300 is placed on the puncture sleeve 400, the groove on the air-blocking valve 300 is clamped on the protrusion on the puncture sleeve 400, so that the air-blocking valve 300 can be firmly confined in the opening at the top of the puncture sleeve 400 without the aid of external force, thereby ensuring the airtightness of the present invention.

[0022] Reference Figure 3 , Figure 4 The bottom of the self-adjusting sealing cap 200 protrudes downward, and the cross-sectional thickness of the outer ring of the self-adjusting sealing cap 200 is greater than the thickness of the bottom protrusion. The bottom protrusion of the self-adjusting sealing cap 200 matches a groove formed in the middle of the air-blocking valve 300. When the self-adjusting sealing cap 200 is placed on the air-blocking valve 300, the protrusion at the bottom of the self-adjusting sealing cap 200 is in the groove in the middle of the air-blocking valve 300, and a circle of grooves is formed between the outer ring of the self-adjusting sealing cap 200 and the protrusion at its bottom, so that the self-adjusting sealing cap 200 can be clamped on the air-blocking valve 300, forming a double-layer closed structure.

[0023] Reference Figure 2 , Figure 3 Two symmetrical fixing columns are arranged on the inner wall of the top surface of the sealing cover 100 along the central axis, and the distance between the two fixing columns is the same as the diameter of the groove on the upper surface of the self-adjusting sealing cap 200. When the sealing cover 100 is installed on the puncture sleeve 400, the fixing columns on the inner wall of the top surface are in the groove on the upper surface of the self-adjusting sealing cap 200. The sealing cover 100 is rotatably clamped on the puncture sleeve 400, and the fixing columns rotate in the groove on the upper surface of the self-adjusting sealing cap 200, that is, when the sealing cover 100 is tightened on the puncture sleeve 400, the fixing columns will also press the self-adjusting sealing downward. The cap 200 and the air-blocking valve 300 ensure the stability of the self-adjusting sealing cap 200 and the air-blocking valve 300 inside the device, and make the various components have a two-way interference fit, thereby ensuring the airtightness of the present invention, so that the present invention can meet various needs during surgery. Compared with the prior art, the present invention can be quickly disassembled and assembled. For example, if some special emergencies occur during surgery, the sealing cover 100 can be unscrewed in time, the self-adjusting sealing cap 200 and the air-blocking valve 300 can be quickly taken out, and then the surgical specimen can be taken out from the patient's body, thereby solving the problems that have not yet been solved in the prior art.

[0024] Embodiment 1: First, place the air blocking valve 300 inside the opening at the top of the puncture sleeve 400. At this time, the groove of the air blocking valve 300 will be snapped onto a circle of protrusions in the opening at the top of the puncture sleeve 400 to fix it. Then, place the self-adjusting sealing cap 200 in the air blocking valve 300. At this time, the protrusion at the bottom of the self-adjusting sealing cap 200 is just snapped into the groove formed in the middle of the air blocking valve 300. The self-adjusting sealing cap 200 is fixed in the air blocking valve 300, and then the sealing cover 100 is covered on the puncture sleeve 400 and tightened. If it is incorrect, the normal locking work cannot be completed, because a card slot is provided on the top outer wall of the puncture sleeve 400, and the card slot is provided with an opening, and the card slot gradually narrows from the opening along the closing direction of the sealing cover 100, and a buckle matching the card slot of the puncture sleeve 400 is provided on the inner wall of the lower end of the sealing cover 100. The sealing cover 100 and the puncture sleeve 400 are rotated and connected with each other through the card slot and the buckle. If the position is incorrect, you only need to continue to rotate the sealing cover 100 and wait for the buckle to fall into the correct card slot opening position to complete the tightening work. After completing the assembly, the assembly work of the present invention can be completed.

[0025] Embodiment 2: First, place the air blocking valve 300 inside the opening at the top of the puncture sleeve 400. At this time, the groove of the air blocking valve 300 will be snapped onto a circle of protrusions in the opening at the top of the puncture sleeve 400 to fix it. At this time, place the self-adjusting sealing cap 200 in the air blocking valve 300. At this time, the protrusion at the bottom of the self-adjusting sealing cap 200 is just snapped into the groove formed in the middle of the air blocking valve 300. Fix the self-adjusting sealing cap 200 in the air blocking valve 300, and then cover the puncture sleeve 400 with the sealing cover 100 and tighten it. Two symmetrical fixing columns are arranged on the inner wall of the top surface of the sealing cover 100 along the central axis. The distance between the two fixing columns is the same as the diameter of the groove on the upper surface of the self-adjusting sealing cap 200. When the sealing cover 100 is installed on the puncture sleeve 400, the fixing columns on the inner wall of its top surface are in the self-adjusting The sealing cap 200 is in the groove on the upper surface of the sealing cap 200. When the sealing cap 100 is tightened on the puncture sleeve 400, its fixing column will also press the self-adjusting sealing cap 200 and the air blocking valve 300 downwards. If the sealing cap 100 is not placed correctly on the puncture sleeve 400, the normal locking work cannot be completed. Because a card slot is provided on the outer wall of the top of the puncture sleeve 400, the card slot is provided with an opening, and the card slot gradually narrows from the opening along the closing direction of the sealing cap 100. A buckle matching the card slot of the puncture sleeve 400 is provided on the inner wall of the lower end of the sealing cap 100. The sealing cap 100 and the puncture sleeve 400 are rotated and connected by the card slot and the buckle. If the position is incorrect, you only need to continue to rotate the sealing cap 100 and wait for the buckle to fall into the correct card slot opening position to complete the tightening work. After completing the assembly, the assembly work of the present invention can be completed.

Claims

1. A detachable soft rubber structure for a trocar, characterized in that: include: A sealing cover (100), a self-adjusting sealing cap (200), a gas blocking valve (300), and a puncture sleeve (400), wherein The self-adjusting sealing cap (200) is arranged above the air blocking valve (300), and the air blocking valve (300) is arranged in the top opening of the puncture sleeve (400), and both are made of soft rubber material. The sealing cover (100) is detachably connected to the puncture sleeve (400), and a through hole is provided on the top of the sealing cover (100). A slot is provided on the outer wall of the top of the puncture sleeve (400), the slot having an opening, and the slot gradually narrows from the opening along the closing direction of the sealing cover (100). A buckle matching the slot of the puncture sleeve (400) is provided on the inner wall of the lower end of the sealing cover (100). The sealing cover (100) and the puncture sleeve (400) are connected by rotation and snap-fitting with each other through the snap groove and the snap buckle.

2. A detachable soft rubber structure for a trocar according to claim 1, characterized in that: A groove is formed in the middle of the air blocking valve (300), the bottom of which bulges downwards, and the thickness of the cross section of the outer ring of the air blocking valve (300) is greater than the thickness of the bulge at the bottom. The bottom protrusion is an openable structure, and the bottom part of the protrusion at the lower end is equally divided into four identical quarter circles from the center of the circle, and the straight edge of each quarter circle is in close contact with the straight edge of the adjacent quarter circle. A groove is formed between the outer ring of the air blocking valve (300) and the bottom protrusion. A circle of upward protrusions is arranged on the inner side of the top outer wall of the puncture sleeve (400), the size of which matches the groove on the air blocking valve (300); when the air blocking valve (300) is placed on the puncture sleeve (400), the groove on the air blocking valve (300) is clamped on the protrusion on the puncture sleeve (400).

3. A detachable soft rubber structure for a puncture device according to claim 2, characterized in that: The bottom of the self-adjusting sealing cap (200) is convex downward, and the thickness of the cross section of the outer ring of the self-adjusting sealing cap (200) is greater than the thickness of the bottom convexity. The bottom convexity of the self-adjusting sealing cap (200) matches with a groove formed in the middle of the air blocking valve (300). When the self-adjusting sealing cap (200) is placed on the air blocking valve (300), the protrusion at the bottom of the self-adjusting sealing cap (200) is located in the groove in the middle of the air blocking valve (300). A circle of groove is formed between the outer ring of the self-adjusting sealing cap (200) and the protrusion at the bottom thereof.

4. A detachable soft rubber structure for a trocar according to claim 3, characterized in that: Two symmetrical fixing columns are arranged on the inner wall of the top surface of the sealing cover (100) along the central axis, and the distance between the two fixing columns is the same as the diameter of the groove on the upper surface of the self-adjusting sealing cap (200). When the sealing cover (100) is installed on the puncture sleeve (400), the fixing column on the inner wall of the top surface is located in the groove on the upper surface of the self-adjusting sealing cap (200), the sealing cover (100) is rotatably clamped on the puncture sleeve (400), and the fixing column rotates in the groove on the upper surface of the self-adjusting sealing cap (200).

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