Multi-duct puncture outfit
The multi-layer sealing structure and focused design of the multi-channel trocar solve the problem of air leakage when rotating and adjusting the instrument, reduce patient wounds, improve surgical safety and efficiency, and achieve precise operation.
Patent Information
- Application Number
- CN202422330280.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-09-24
AI Technical Summary
Existing multi-channel trocars have insufficient sealing performance when rotating to adjust the instrument angle, which easily leads to air leakage, affecting the normal progress of the operation, and multiple instrument incisions increase the harm to the patient.
A multi-channel trocar was designed, which uses an incision protective sleeve, a sealed operating table and multiple instrument channels. Through primary, secondary and tertiary sealing structures and a rotating sealing cap, combined with an inflation port and a smoke exhaust port, multi-layer sealing is achieved. The length and inner diameter are adjusted by the elasticity of the plastic soft film and silicone material, and an expansion groove ring is used to focus the surgical position.
It significantly improves the safety and efficiency of surgery, reduces the number of wounds for patients, avoids air leakage, and improves the clarity of the surgical field and the precision of operation.
Smart Images
Figure CN223614903U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a multi-channel puncture device, belonging to the field of medical device technology. Background Technology
[0002] Currently, the development of minimally invasive surgery aims to minimize or avoid major problems associated with laparoscopic surgery, such as surgical wound infection, adhesions, postoperative pain, and abdominal hernias. To achieve this goal, minimally invasive surgery has evolved to cause minimal trauma to the abdominal and pelvic walls. Current laparoscopic surgeries using multiple instruments create multiple incisions in the patient's abdomen, potentially causing more harm. Furthermore, during surgery, the orientation of surgical instruments needs to be adjusted due to different surgeons' habits, requiring multi-port trocars with rotational capabilities. However, the sealing performance of the rotating parts of commonly used multi-port trocars is often inadequate, leading to air leakage during instrument angle adjustments and disrupting the procedure.
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a structure and designs a multi-channel puncture device to solve the above problems. Summary of the Invention
[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a multi-channel puncture device.
[0005] This utility model discloses a multi-channel puncture device, comprising an incision protective sleeve, a sealing operating table, and multiple instrument channels. The top of the incision protective sleeve and the bottom of the sealing operating table are detachably sealed. The multiple instrument channels are evenly arranged on the top of the sealing operating table. The sealing operating table includes a cylindrical sealing base with openings at the top and bottom. The top of the sealing base is fixed by a primary sealing groove and a primary sealing bottom tooth with an annular structure at the bottom of the primary sealing ring to achieve a primary seal. A secondary sealing ring with an annular structure is also press-fitted between the primary sealing ring and the top of the sealing base. The secondary sealing ring has a T-shaped structure. The secondary sealing bottom tooth at the bottom of the secondary sealing ring is press-fitted with the sealing groove on the top surface of the sealing base to achieve a secondary seal. The secondary sealing bottom tooth at the top of the secondary sealing bottom tooth is interlocked with the primary sealing top hook at the top edge of the primary sealing ring. A rotating sealing cap is rotatably fitted onto the top edge of the secondary sealing ring through a matching rotating groove. The tertiary sealing funnel tooth at the edge of the rotating groove is press-fitted with the inner edge of the primary sealing ring to achieve a tertiary seal.
[0006] Furthermore, the side wall of the sealed operating table is provided with an inflation hole and a smoke exhaust hole. The inflation hole is used to inflate the abdominal cavity with gas, making the abdominal cavity expand and facilitating the doctor's observation and operation. The smoke exhaust hole is used to remove the smoke generated in the abdominal cavity during the operation, effectively avoiding the influence of smoke on the surgical field of vision, and significantly improving the safety and efficiency of the operation.
[0007] Furthermore, the incision protective sleeve includes a channel tube made of a soft plastic film. An inner ring is provided at the bottom of the channel tube, and a double-ring structure roll-up expansion ring is connected to the top of the channel tube. By placing the inner ring into the abdominal cavity at the surgical site, it plays a positioning and support role. Then, the length of the channel tube can be adjusted by rolling up the roll-up expansion ring. The elasticity of the channel tube made of soft plastic film can be used to adjust its length and inner diameter until the surgical requirements are met.
[0008] Furthermore, the instrument channel includes a cylindrical instrument channel substrate, and a cylindrical slit membrane is embedded in the top inner side of the instrument channel substrate. The slit membrane is made of silicone and can tightly adhere to the surface of the medical device passing through it to achieve a one-time seal.
[0009] Furthermore, a funnel-shaped perforated membrane is embedded at the top of the slit membrane, and a circular instrument tube sealing hole is located at the bottom of the perforated membrane. The material is flexible rubber, and the instrument tube sealing hole can be press-fitted to the surface of the surgical instrument to achieve a secondary seal.
[0010] Furthermore, an anti-puncture membrane is also attached to the surface of the perforated membrane to protect it and prevent damage to the surface of the perforated membrane when a medical device is inserted.
[0011] Furthermore, a double-layer sealing connection groove is provided on the inner wall of the bottom of the sealing base. The double-layer sealing connection groove is matched with the roll-up expansion ring. The sealing of the channel tube is achieved by interference fit between the double-layer sealing connection groove and the roll-up expansion ring.
[0012] Furthermore, the top surface of the rotating sealing cover is provided with a concave expansion groove ring, and the instrument channel is installed in the inner ring of the expansion groove ring. Due to the small thickness of the expansion groove ring, when air is injected into the sealed operating table, the expansion groove ring will expand and bulge into a hemispherical structure, thereby causing the instrument channel at the top of the inner ring of the expansion groove ring to gather towards the center, forming a chopstick effect, which can better align with the surgical position and play a focusing role.
[0013] By means of the above-described solution, the present invention has at least the following advantages:
[0014] This novel multi-channel trocar creates only one wound in the patient's abdomen during actual use, minimizing harm. The length of the channel tube can be adjusted by rolling up and down the expansion ring. The elasticity of the channel tube, made of a soft plastic film, allows for adjustment of its length and inner diameter until the surgical requirements are met. During surgery, gas is injected into the abdominal cavity through the inflation port, causing the cavity to expand and facilitating the surgeon's observation. The smoke exhaust port removes fumes generated during the procedure, effectively preventing them from affecting the surgical field and significantly improving surgical safety and efficiency. The expansion groove ring, due to its thinness, expands into a hemispherical structure when inflated into the sealed operating table. This causes the instrument channel at the top of the inner ring to converge towards the center, creating a chopstick effect, thus better aligning with the surgical position and achieving a focusing effect. This device has broad application prospects.
[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this invention are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of the multi-channel puncture device of this utility model;
[0018] Figure 2 This is a partial cross-sectional view of the multi-channel puncture device of this utility model;
[0019] Figure 3 This is a cross-sectional view of the sealed operating table in the multi-channel puncture device of this utility model;
[0020] Figure 4 This is a cross-sectional view of the rotating sealing cap in the multi-channel puncture device of this utility model;
[0021] Figure 5 This is a cross-sectional view of the instrument channel in the multi-channel puncture device of this utility model.
[0022] In the figure;
[0023] 1. Incision protection sleeve; 2. Sealed operating table; 3. Instrument access channel;
[0024] 101. Inner ring; 102. Channel tube; 103. Rolled-up expansion ring;
[0025] 201. Inflation port; 202. Smoke exhaust port; 203. Sealing base; 204. Primary sealing ring; 205. Secondary sealing ring; 206. Rotary sealing cap;
[0026] 2031. Double-layer sealing connection groove; 2032. Primary sealing groove; 2033. Sealing groove ring;
[0027] 2041. Top hook for primary seal; 2042. Bottom teeth for primary seal;
[0028] 2051. Secondary seal bottom protruding teeth; 2052. Secondary seal bottom retaining teeth;
[0029] 2061, Expansion groove ring; 2062, Rotary slot; 2063, Triple sealing funnel teeth;
[0030] 301. Instrument channel substrate; 302. Slit membrane; 303. Pore membrane; 304. Puncture-resistant membrane;
[0031] 3031. Instrument tube sealing hole. Detailed Implementation
[0032] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0033] See Figures 1 to 5A preferred embodiment of this utility model describes a multi-channel puncture device, comprising an incision protective sleeve 1, a sealing operating table 2, and multiple instrument channels 3. The top of the incision protective sleeve 1 and the bottom of the sealing operating table 2 are detachably sealed together. Multiple instrument channels 3 are evenly arranged on the top of the sealing operating table 2. The sealing operating table 2 includes a cylindrical sealing base 203 with openings at the top and bottom. The top of the sealing base 203 is secured by a primary sealing groove 2032 and a primary sealing bottom tooth 2042 with an annular structure at the bottom of a primary sealing ring 204, achieving a primary seal. A secondary sealing ring 205 with an annular structure is also press-fitted between the primary sealing ring 204 and the top of the sealing base 203. The secondary sealing ring 205 has a "T"-shaped structure. The secondary sealing bottom protrusion 2051 at the bottom of the secondary sealing ring 205 and the sealing groove 2033 on the top surface of the sealing base 203 are press-fitted to achieve secondary sealing. The secondary sealing bottom locking tooth 2052 at the top of the secondary sealing bottom protrusion 2051 and the primary sealing top locking hook 2041 at the top edge of the primary sealing ring 204 are interlocked. The top edge of the secondary sealing ring 205 is rotatably fitted with a rotating sealing cover 206 through a matching rotating groove 2062. The tertiary sealing funnel tooth 2063 at the edge of the rotating groove 2062 is press-fitted to the inner edge of the primary sealing ring 204 to achieve tertiary sealing.
[0034] The side wall of the sealed operating table 2 is also provided with an inflation hole 201 and a smoke exhaust hole 202. The inflation hole 201 is used to inflate the abdominal cavity with gas, so that the abdominal cavity expands and the doctor can observe and operate. The smoke exhaust hole 202 is used to remove the smoke generated in the abdominal cavity during the operation, effectively avoiding the influence of smoke on the surgical field of vision, and significantly improving the safety and efficiency of the operation.
[0035] The incision protective sleeve 1 includes a channel tube 102, which is made of a soft plastic film. An inner ring 101 is provided at the bottom of the channel tube 102, and a double-ring structure roll-up expansion ring 103 is connected to the top of the channel tube 102. By placing the inner ring 101 into the abdominal cavity of the surgical site, it plays a positioning and support role. Then, by rolling up the roll-up expansion ring 103, the length of the channel tube 102 can be adjusted. The elasticity of the channel tube 102 made of soft plastic film can be used to adjust its length and inner diameter until the surgical requirements are met.
[0036] The instrument channel 3 includes a cylindrical instrument channel base 301, and a cylindrical slit membrane 302 is embedded in the top inner side of the instrument channel base 301. The slit membrane 302 is made of silicone and can tightly adhere to the surface of the medical device passing through it to achieve a one-time seal.
[0037] The top of the slit membrane 302 is also embedded with a funnel-shaped perforated membrane 303, and the bottom of the perforated membrane 303 is a circular instrument tube sealing hole 3031. The material is flexible rubber. The instrument tube sealing hole 3031 can be press-fitted to the surface of the surgical instrument to achieve a secondary seal.
[0038] A puncture-resistant membrane 304 is also attached to the surface of the perforated membrane 303 to protect the perforated membrane 303 and prevent damage to the surface of the perforated membrane 303 when a medical device is inserted.
[0039] The sealing base 203 has a double-layer sealing connection groove 2031 on its bottom inner wall. The double-layer sealing connection groove 2031 is matched with the roll-up expansion ring 103. The sealing of the channel pipe 102 is achieved by the interference fit between the double-layer sealing connection groove 2031 and the roll-up expansion ring 103.
[0040] The top surface of the rotary sealing cover 206 is provided with a concave expansion groove ring 2061. The instrument channel 3 is installed in the inner ring of the expansion groove ring 2061. Due to the small thickness of the expansion groove ring 2061, when air is injected into the sealed operating table 2, the expansion groove ring 2061 will expand and bulge into a hemispherical structure, thereby causing the instrument channel 3 at the top of the inner ring of the expansion groove ring 2061 to gather towards the center to form a chopstick effect, thus better aligning with the surgical position and playing a focusing role.
[0041] The working principle of this utility model is as follows:
[0042] In practical use, the multi-channel trocar of this invention first places the inner ring 101 at the bottom of the incision protective sleeve 1 into the abdominal cavity of the surgical site for support and fixation. Then, the length of the channel tube 102 is adjusted by rolling up the expansion ring 103. The elasticity of the channel tube 102, made of a soft plastic film, allows for adjustment of its length and inner diameter until the surgical requirements are met. Next, the sealing operating table 2 is sealed to the expansion ring 103 via an interference fit between the double-layer sealing connecting groove 2031 and the channel tube 102. During surgery, gas is injected into the abdominal cavity through the inflation port 201, causing the abdominal cavity to expand. For the surgeon's observation and operation, the smoke exhaust hole 202 is used to remove the smoke generated during the abdominal surgery, effectively avoiding the impact of smoke on the surgical field of vision and significantly improving the safety and efficiency of the operation. With the setting of the expansion groove ring 2061, when air is inflated into the sealed operating table 2, the expansion groove ring 2061, due to its small thickness, will expand and bulge into a hemispherical structure, thereby causing the instrument channel 3 at the top of the inner ring of the expansion groove ring 2061 to converge towards the center, forming a chopstick effect, which can better align with the surgical position and play a focusing role. After the operation, the inner ring 101 is removed, the incision protective sleeve 1 is taken out, and the wound is cleaned and sutured.
[0043] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0044] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0045] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A multi-channel trocar, comprising an incision protective sleeve, a sealed operating table, and multiple instrument channels, characterized in that: The top of the incision protective sleeve and the bottom of the sealing operating table are detachably sealed. Multiple instrument channels are evenly arranged on the top of the sealing operating table. The sealing operating table includes a cylindrical sealing base with openings at the top and bottom. The top of the sealing base is fixed by a primary sealing groove and a primary sealing bottom tooth with an annular structure at the bottom of the primary sealing ring. A secondary sealing ring with an annular structure is also interference-fitted between the primary sealing ring and the top of the sealing base. The secondary sealing ring has a "T" shaped structure. The bottom secondary sealing bottom protrusion of the secondary sealing ring is interference-fitted with the sealing groove on the top surface of the sealing base. The top secondary sealing bottom tooth of the secondary sealing bottom protrusion is interlocked with the top primary sealing hook of the primary sealing ring. A rotating sealing cover is rotatably fitted onto the top edge of the secondary sealing ring through a matching rotating groove. The tertiary sealing funnel tooth at the edge of the rotating groove is interference-fitted with the inner edge of the primary sealing ring.
2. The multi-channel puncture device according to claim 1, characterized in that: The side wall of the sealed operating table is also provided with an air inlet and a smoke exhaust outlet.
3. The multi-channel puncture device according to claim 1, characterized in that: The cut protection sleeve includes a channel tube made of soft plastic film. An inner ring is provided at the bottom of the channel tube, and a double-ring structure roll-up expansion ring is connected to the top of the channel tube.
4. The multi-channel puncture device according to claim 1, characterized in that: The instrument channel includes a cylindrical instrument channel substrate, and a cylindrical slit membrane is embedded in the top of the inner side of the instrument channel substrate. The slit membrane is made of silicone.
5. The multi-channel puncture device according to claim 4, characterized in that: The top of the slit membrane is also embedded with a funnel-shaped perforated membrane, and the bottom of the perforated membrane is a circular instrument tube sealing hole, which is made of flexible rubber material.
6. The multi-channel puncture device according to claim 5, characterized in that: A puncture-resistant membrane is also attached to the surface of the porous membrane.
7. The multi-channel puncture device according to claim 1, characterized in that: The inner wall at the bottom of the sealing base is provided with a double-layer sealing connection groove, which is matched with the roll-up expansion ring.
8. The multi-channel puncture device according to claim 1, characterized in that: The top surface of the rotary sealing cover is provided with a concave expansion groove, and the instrument channel is installed in the inner ring of the expansion groove.