Single-channel abdominal surgery incision protection device

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a single-channel abdominal surgery incision protection device. In order to solve the problem that in the prior art, a puncture guide seat and an incision protection sleeve of an instrument applied to a single-port abdominal surgery are not stably connected, the single-channel abdominal surgery incision protection device comprises the incision protection sleeve and the puncture guide seat, and the incision protection sleeve and the puncture guide seat are connected through a connecting assembly. The connecting assembly comprises a locking piece and a locking ring made of rigid materials, the locking piece is rotationally connected to the outer side of the end of the incision protection sleeve, the locking ring is embedded in the end, close to the incision protection sleeve, of the puncture guide base, one end of the locking piece can be pressed on the locking ring by rotating the locking piece, and the other end of the locking piece can be pressed on the other end of the puncture guide base. And the inner wall of the puncture guide seat is pressed on the outer wall of the incision protection sleeve. And stable connection of the incision protection sleeve and the puncture guide seat is realized. The invention further provides a lifting device, and the mode of adjusting the length of the instrument channel in the incision protection sleeve is optimized.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular relates to a single-channel abdominal surgical incision protection device. Background Technology

[0002] Single-port laparoscopic surgery, compared to traditional multi-port laparoscopic surgery, offers advantages such as fewer incisions and improved aesthetics, and is gradually becoming a new trend. Correspondingly, single-port laparoscopic surgery is supported by specific surgical instruments, mainly consisting of an incision protector to safeguard the patient's abdominal wall and an instrument guide platform located outside the abdominal wall.

[0003] For example, a Chinese utility model patent discloses a disposable single-channel multi-dimensional robotic surgical incision protective sleeve [Application No.: 201921943128.6]. This utility model includes an incision protective sleeve and a puncture guide seat. The puncture guide seat includes a hemispherical top cover and a connecting part, which are integrally formed with the hemispherical top cover. The hemispherical top cover is provided with a puncture guide post for guiding robotic surgical instruments. The incision protective sleeve is snap-fitted to the connecting part. This utility model, by combining the incision protective sleeve and the puncture guide seat into a robotic surgical incision protective sleeve, can seal the corresponding surgical position during surgery to prevent infection. Furthermore, the hemispherical cover of the puncture guide seat allows for a wider surgical field of view and more operating angles after the surgical instruments are inserted through the puncture guide post, making operation easier and allowing for better adjustment of the viewing mirror angle. Additionally, the incision protective sleeve can be removed, adjusted in length, and then snapped back in place according to the needs of the surgery, thus achieving length adjustment.

[0004] While the hemispherical cover of this novel puncture guide seat provides a wider surgical field, more operating angles, and better operation, allowing for better adjustment of the viewing mirror angle and the ability to remove, adjust, and re-secure the incision protective sleeve according to surgical needs, both the puncture guide seat and the incision protective sleeve are made of soft materials. Their interference fit makes them prone to relative misalignment, making them highly susceptible to loss of connection and air leakage due to impacts from surgical instruments, thus affecting the procedure. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a single-channel abdominal surgical incision protection device, which has a novel locking structure for stabilizing the relative connection between the incision protection sleeve and the puncture guide seat.

[0006] This invention includes an incision protective sleeve and a puncture guide seat. The incision protective sleeve and the puncture guide seat are connected by a connecting assembly. The connecting assembly includes a locking member and a locking ring made of a rigid material. The locking member is rotatably connected to the outer side of the end of the incision protective sleeve. The locking ring is embedded in the end of the puncture guide seat near the incision protective sleeve. Rotating the locking member can cause one end of the locking member to press against the locking ring, and cause the inner wall of the puncture guide seat to press against the outer wall of the incision protective sleeve.

[0007] Preferably, the puncture guide seat includes a top cover and a connecting sleeve that are fixedly connected. The outer surface of the connecting sleeve protrudes to the outside of the top cover and forms a step with the outer surface of the top cover. The upper surface of the step is provided with a mounting groove that is recessed into the connecting sleeve. The locking ring is fixedly embedded in the mounting groove.

[0008] Preferably, the top cover includes a spherical instrument operating platform, a long-rod valve assembly, and instrument through holes that are inclinedly distributed on the spherical instrument operating platform. The inclined distribution of the instrument through holes facilitates the misalignment between instruments, and the spherical space greatly reduces the probability of collisions between instruments. The overall interface between the spherical instrument operating platform and the connecting sleeve is "Ω" shaped, meaning that the spherical instrument operating platform has an entire hemisphere for instrument movement, increasing the space for instrument movement, and the lower part of the hemisphere contracts inward to match the size of the connecting assembly.

[0009] Preferably, the locking ring includes a base ring and a buckle groove, the inner and outer walls of the buckle groove are respectively fitted / integrated with the inner and outer walls of the base ring, and one end of the locking member is embedded in the buckle groove.

[0010] Preferably, the locking member includes a base plate and a fastener, one end of the locking member is located at the end of the fastener and parallel to the base plate, and the fastener is engaged with the fastening hole groove when the base plate is perpendicular to the locking ring direction.

[0011] Preferably, the incision protective sleeve includes a tube with an internal instrument channel, the locking member is rotatably connected to the tube, and the tube is fixedly provided with a first ring and a second ring for fixing the tube to the patient's abdominal wall, the first ring being closer to the puncture guide seat than the second ring.

[0012] Preferably, the cut protective sleeve further includes a lifting assembly for adjusting the vertical distance between the first ring and the second ring. One end of the lifting assembly is fixedly connected to the second ring, and the other end passes through the first ring and is slidably connected to it. The distance between the connection point of the lifting assembly and the second ring and the axis of the sleeve is less than the distance between the connection point of the lifting assembly and the first ring and the axis of the sleeve, i.e., a tendency to contract and pull inward, preventing the sleeve from flipping outward. It is readily apparent that a symmetrically distributed arrangement of multiple lifting devices would be more conducive to maintaining stable axial contraction.

[0013] Preferably, the lifting assembly includes a traction wire / rope and a lifting state locking device, the lifting state locking device restricting the movement of the traction wire / rope, and the lifting state locking device being fixed above the cut protective sleeve.

[0014] When there is more than one lifting component, a common lifting state locking device can be used for locking. That is, the operating part of the lifting component that passes through the first ring body will be combined before reaching the common lifting state locking device; of course, each component can also be assigned a corresponding lifting state locking device.

[0015] Preferably, the lifting assembly further includes a guide device located between the first ring and the second ring, with the traction wire / rope slidably connected to the guide device, and the guide device axially blocking the upward movement of the second ring.

[0016] Preferably, the first ring body has a pre-tightening guide channel that gradually narrows away from the aperture of the second ring body during its final stroke before penetrating the lifting tissue upwards, and the pre-tightening guide channel restricts the free sliding of the lifting assembly.

[0017] Compared with existing technologies, the advantages of this invention are: 1. The locking structure provided by the present invention achieves a soft and hard connection between the incision protective sleeve and the puncture guide seat through a locking ring made of rigid material. Compared with the traditional double-sided soft interference connection, it is less likely to cause the relative position of the two to shift. The way in which one end of the locking member is pressed against the locking ring so that the inner wall of the puncture guide seat is pressed against the outer wall of the incision protective sleeve can further prevent the tendency of the two to separate at the connection.

[0018] The lifting component provided by this invention allows for adjusting the length of the instrument channel to adapt to the thickness of the patient's abdominal wall, greatly improving efficiency compared to traditional eversion adjustment.

[0019] The lifting assembly provided by the present invention effectively prevents the tube from shrinking inward and affecting the normal operation of the instrument in the instrument channel by means of a scheme in which it is inserted outside the incision protective sleeve and the horizontal position of the first and second ring traction wires / ropes is offset.

[0020] The lifting state locking device of the present invention facilitates the fixation of the state after the instrument channel has been adjusted. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the locking ring; Figure 4 This is a schematic diagram of a protective sleeve for the cut. Figure 5 Top view of the cut protective sleeve; Figure 6 for Figure 5 AA section view Figure 7 This is a schematic diagram of the improved cut-out protective sleeve structure; In the diagram: 1. Incision protective sleeve; 2. Puncture guide seat; 3. Connecting assembly; 31. Locking element; 32. Locking ring; 21. Top cover; 211. Spherical instrument operating platform; 212. Long rod air valve assembly; 213. Instrument through hole; 22. Connecting sleeve; 23. Step; 24. Mounting groove; 11. Instrument channel; 12. Tube sleeve; 13. First ring body; 14. Second ring body; 15. Lifting assembly; 151. Traction wire / rope; 152. Lifting state locking device; 153. Guide device; 16. Pre-tightening guide channel. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Example 1: As Figure 1 , 2 As shown, the single-channel abdominal surgical incision protection device provided by the present invention includes an incision protection sleeve 1 and a puncture guide seat 2, wherein the incision protection sleeve 1 and the puncture guide seat 2 are connected by a connecting assembly 3. The connecting assembly 3 includes a locking member 31 and a locking ring 32 made of rigid material. The locking member 31 is rotatably connected to the outer side of the end of the incision protection sleeve 1, and the locking ring 32 is embedded in the end of the puncture guide seat 2 near the incision protection sleeve 1.

[0024] In this invention, during use, the incision protective sleeve 1 and the puncture guide seat 2 are first fitted together. Both are made of soft materials, but the rigid locking ring 32 is embedded in the puncture guide seat 2, pressing against the inner wall of the puncture guide seat 2 to make it fit against the outer wall of the incision protective sleeve 1, thus making the fit more secure. Furthermore, flipping the locking member 31 upwards allows one end to press against the locking ring 32. Compared to traditional locks that only prevent the two from separating vertically by fastening on the side, the locking member 31 of this invention not only has the traditional function, but also can press against the inner wall of the puncture guide seat 2 to press against the outer wall of the incision protective sleeve 1 and prevent any horizontal displacement of the incision protective sleeve 1 and the puncture guide seat 2, thus preventing this tendency to move. This effectively solves the problem of relative misalignment that is easily caused by the interference fit of the two soft materials in traditional technology. After installation, one end of the incision protective sleeve 1 is inserted into the patient's abdominal cavity through the surgical incision, and the other end is connected to the puncture guide seat 2 outside the abdominal cavity to insert instruments. After inflating the abdominal cavity, the formal surgery begins.

[0025] Preferably, the puncture guide seat 2 includes a top cover 21 and a connecting sleeve 22 fixedly connected. The outer surface of the connecting sleeve 22 protrudes to the outside of the top cover 21. The connecting sleeve 22 is used to fit the incision protective sleeve 1, and the top cover 21 is used to guide the instrument. As a preferred embodiment for accommodating the locking ring 32, the connecting sleeve 22 and the outer surface of the top cover 21 form a stepped portion 23. The upper surface of the stepped portion 23 is provided with a mounting groove 24 that is recessed into the connecting sleeve 22, and the locking ring 32 is fixedly embedded in the mounting groove 24.

[0026] Specifically, such as Figure 2 As shown, the top cover 21 includes a spherical instrument operating platform 211 for inserting instruments, a long rod valve assembly 212 for inflation, and instrument through holes (213) located on the spherical instrument operating platform (211) at an angle. The angled distribution of the instrument through holes (213) facilitates the misalignment between instruments, and the spherical space greatly reduces the probability of collisions between instruments. The overall interface between the spherical instrument operating platform 211 and the connecting sleeve 22 is Ω-shaped. The upper hemisphere is a complete hemisphere to accommodate various instrument movements, while the lower hemisphere contracts inward to match the size of the connecting sleeve 22. This allows the connecting sleeve 22 to be less large and increases connection stability.

[0027] Preferred, such as Figure 3 As shown, the locking ring 32 includes a base ring 321 and a buckle groove 322. The inner and outer walls of the buckle groove 322 are respectively fitted / integrated with the inner and outer walls of the base ring 321. One end of the locking member 31 is embedded in the buckle groove 322. The locking member 31 horizontally presses the inner and outer walls of the buckle groove 322, causing the base ring 321 to interact with the puncture guide seat 2, thereby restricting the movement of the incision protective sleeve 1. It is easy to imagine that the end of the locking member 31 is preferably embedded vertically in the buckle groove 322.

[0028] As a preferred embodiment, such as Figure 2 , 5 As shown, the locking member 31 includes a base plate 311 and a fastener 312. One end of the locking member 31 is located at the end of the fastener 312 and parallel to the base plate 311. When the base plate 311 is perpendicular to the locking ring 32, that is, when it is in close contact with the outer wall of the cut-out protective sleeve 1, the fastener 312 is engaged with the buckle hole groove 322.

[0029] As a preferred configuration of the incision protective sleeve 1 for a single-port abdominal instrument, the incision protective sleeve 1 includes a tube 12 with an internal instrument channel 11. The locking member 31 is rotatably connected to the tube 12. A first ring 13 and a second ring 14 are fixedly disposed on the tube 12, with the first ring 13 being closer to the puncture guide seat 2 than the second ring 14. The device is fixed by clamping the patient's abdominal wall inside and outside through the arrangement of the first ring 13 and the second ring 14.

[0030] The working principle of this embodiment is as follows: After the incision protective sleeve 1 is connected to the puncture guide seat 2, the locking member 31 is flipped upward and embedded into the buckle groove 322 for further stable connection. Then, the cannula 12 is lowered into the patient's abdominal cavity, and the first ring 13 is attached to the outer wall of the patient's abdominal cavity. The length of the cannula 12 is adjusted by flipping or other means until the second ring 14 is attached to the inner wall of the patient's abdominal cavity, thus realizing the stable establishment of the instrument channel 11. Then, the abdominal cavity is inflated and the operation begins.

[0031] Example 2: The parts that are the same as in Example 1 will not be repeated. To optimize the doctor's user experience, such as... Figure 2 , 4 As shown, the incision protective sleeve 1 also includes a lifting assembly 15 for adjusting the vertical distance between the first ring 13 and the second ring 14. One end of the lifting assembly 15 is fixedly connected to the second ring 14, and the other end passes through the first ring 13 and is slidably connected to the first ring 13. That is, the lifting assembly 15 is distributed on the outside of the sleeve 12, and the abdominal wall can limit the horizontal outward deflection of the sleeve 12 to a certain extent during the lifting process. The setting of the lifting assembly 15 on the outside of the sleeve 12 and the distance between the connection point of the lifting assembly 15 and the second ring 14 and the axis of the sleeve 12 is less than the distance between the connection point of the lifting assembly 15 and the first ring 13 and the axis of the sleeve 12 also ensures that the sleeve 12 will not flip inward and wrinkle, affecting the instrument channel 11.

[0032] Specifically, in an easily conceivable manner, the lifting assembly 15 includes a traction wire / rope 151 for lifting. To maintain the desired lifting state, the lifting assembly 15 also includes a lifting state locking device 152, which is secured by the upper end of the cut-out protective sleeve 1.

[0033] It is easy to see that using multiple lifting devices 15 symmetrically distributed is clearly more conducive to maintaining stable axial contraction. For example... Figure 4 As shown, in order to simplify operation, improve efficiency and save materials, only one lifting state locking device 152 can be installed. When there is more than one lifting component 15, the operating part of the lifting component 15 that passes through the first ring body 13 will be combined and locked together by a common lifting state locking device 152 before reaching the common lifting state locking device 152. Of course, the method of assigning corresponding lifting state locking devices 152 one by one should not be excluded.

[0034] It is easy to imagine that the lifting state locking device 152 can be a fixed part with a hole, and the traction wire / rope 151 can be fixed by knotting or other means after passing through the hole.

[0035] As a preferred option, such as Figure 5 , 6As shown, the first ring 13 has a pre-tightening guide channel 16 at the end of its stroke before the lifting tissue 15 passes through it. The pre-tightening guide channel 16 restricts the free sliding of the lifting assembly 15, thus preventing the traction wire / rope 151 from slipping off due to accidental release by medical personnel. As shown in the figure, an easily conceivable method is to suddenly narrow the corresponding channel when the traction wire / rope 151 is about to pass through the first ring 13, generating a certain amount of friction to prevent the traction wire / rope 151 from moving freely. Alternatively, the channel size can be gradually narrowed to provide sufficient resistance to prevent the traction wire / rope 151 from sliding freely before it passes through the first ring 13.

[0036] The working principle of this embodiment is as follows: after the instrument channel 11 is stably established as described in Embodiment 1, the traction wire / rope 151 passes through the hole structure of the lifting state locking device 152 and maintains the lifting state by knotting or other means, thus keeping the instrument channel 11 stable, and then the abdominal cavity is inflated to start the operation.

[0037] Example 3: The parts that are the same as in Example 2 will not be repeated. The difference in this example is that, in order to accommodate some patients with thick abdominal walls who require a longer instrument channel 11, the traction wire / rope 151 of the lifting assembly 15 will inevitably have an excessively long stroke, making it prone to deviation during the lifting process. Therefore, as Figure 7 As shown, in this embodiment, a lifting assembly 15 and a guide device 153 are also provided in the instrument channel 11 between the first ring 13 and the second ring 14. The traction wire / rope 151 passes through the guide device 153 before the first ring 13. This increases the vertical stability of the traction wire / rope 151, further securing it and preventing deviation. It's easy to see that the guide device 153, like the sleeve 112, is also made of a soft material, allowing it to be inserted through the surgical incision and pressed against the patient's abdominal wall.

[0038] The guide device 153 is configured to axially block the upward movement of the second ring 14, for example... Figure 7 The structure shown can be configured as a ring with an inner diameter larger than the second ring 14, closely fitted to the sleeve 12. This prevents the guide device 153 from over-traction and misalignment due to excessive traction caused by the patient's abdominal wall thickness being less than the distance between the first ring 13 and the guide device 153, which could lead to the guide device 153 passing over the lifting assembly 15 and causing the instrument channel 11 to deflect, thus affecting the surgery.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0040] Although this document frequently uses terms such as incision protective sleeve 1, puncture guide seat 2, connecting assembly 3, locking element 31, locking ring 32, top cover 21, spherical instrument operating platform 211, long rod valve assembly 212, instrument through hole 213, connecting sleeve 22, step portion 23, mounting groove 24, instrument channel 11, tube sleeve 12, first ring body 13, second ring body 14, lifting assembly 15, traction wire / rope 151, lifting state locking device 152, guide device 153, and pre-tightening guide channel 16, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A single-channel laparotomy incision protection device, comprising an incision protection sleeve (1) and a puncture guide seat (2), the incision protection sleeve (1) and the puncture guide seat (2) being connected through a connecting assembly (3), characterized in that: The connecting assembly (3) comprises a locking piece (31) and a locking ring (32) made of rigid material, the locking piece (31) is rotatably connected outside the end of the incision protective sleeve (1), the locking ring (32) is embedded at one end of the puncture guide seat (2) close to the incision protective sleeve (1), and rotating the locking piece (31) can make one end of the locking piece (31) press on the locking ring (32), and make the inner wall of the puncture guide seat (2) press on the outer wall of the incision protective sleeve (1).

2. The single pass abdominal surgical incision protection device of claim 1, wherein: The puncture guide seat (2) comprises a fixedly connected top cover (21) and a connecting sleeve (22), the outer surface of the connecting sleeve (22) protrudes to the outside of the top cover (21), and a stepped portion (23) is formed on the outer surface of the top cover (21), the stepped portion (23) is provided with a mounting groove (24) recessed towards the inside of the connecting sleeve (22), and the locking ring (32) is fixedly embedded in the mounting groove (24).

3. The single pass abdominal surgical incision protection device of claim 2, wherein: The top cover (21) comprises a spherical instrument operation platform (211), a long rod air valve assembly (212) and an instrument through hole (213) inclinedly distributed on the spherical instrument operation platform (211), and the spherical instrument operation platform (211) and the connecting sleeve (22) are connected in a "Ω" type.

4. The single pass abdominal surgical incision protection device of claim 1, wherein: The locking ring (32) comprises a base ring (321) and a buckle hole groove (322), the inner and outer walls of the buckle hole groove (322) are respectively attached / integrated with the inner and outer walls of the base ring (321), and one end of the locking piece (31) is embedded in the buckle hole groove (322).

5. The single pass abdominal surgical incision protection device of claim 4, wherein: The locking piece (31) comprises a base plate (311) and a buckle (312), one end of the locking piece (31) is located at the end of the buckle (312) and is parallel to the base plate (311), and when the base plate (311) is perpendicular to the direction of the locking ring (32), the buckle (312) is embedded in the buckle hole groove (322).

6. The single pass abdominal surgical incision protection device of claim 1, wherein: The incision protective sleeve (1) comprises a tube sleeve (12) with an instrument channel (11) inside, the locking piece (31) is rotatably connected on the tube sleeve (12), a first ring body (13) and a second ring body (14) are fixedly arranged on the tube sleeve (12), and the first ring body (13) is closer to the puncture guide seat (2) than the second ring body (14).

7. The single pass abdominal surgical incision protection device of claim 6, wherein: The incision protective sleeve (1) further comprises a lifting assembly (15) for adjusting the vertical distance between the first ring body (13) and the second ring body (14), one end of the lifting assembly (15) is fixedly connected to the second ring body (14), the other end penetrates through the first ring body (13) and is slidably connected with the first ring body (13), and the distance between the connection point of the lifting assembly (15) and the second ring body (14) and the axis of the tube sleeve (12) is less than the distance between the connection point of the lifting assembly (15) and the first ring body (13) and the axis of the tube sleeve (12).

8. The single pass abdominal surgical incision protection device of claim 7, wherein: The pulling assembly (15) comprises a pulling wire / rope (151) and a pulling state locking device (152), the pulling state locking device (152) limits the movement of the pulling wire / rope (151), the pulling state locking device (152) is fixed by the sleeve (12), when the pulling assembly (15) is more than one, the operation part of the pulling assembly (15) penetrating out of the first ring body (13) is combined or one-to-one assigned to the corresponding pulling state locking device (152) before reaching the common pulling state locking device (152).

9. A single pass abdominal surgical incision protection device as described in claim 8, wherein: The pulling assembly (15) further comprises a guide device (153), the guide device (153) is located between the first ring body (13) and the second ring body (14), the pulling wire / rope (151) is in sliding connection with the guide device (153), and the guide device (153) axially blocks the upward movement of the second ring body (14).

10. The single pass abdominal surgical incision protection device of claim 7, wherein: The first ring body (13) has a pre-tightening guide channel (16) gradually narrowing away from the aperture of the second ring body (14) at the terminal stroke before the pulling tissue (15) penetrates upward, and the pre-tightening guide channel (16) limits the free sliding of the pulling assembly (15).

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