Sectional type multi-channel puncture outfit
By designing a segmented multi-channel trocar, and utilizing the separation and connection of the upper and lower flexible cannulas, the problem of fixed length of the incision protective sleeve in the existing technology is solved, enabling trocars of various specifications, improving surgical efficiency and saving storage space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-03-31
AI Technical Summary
The incision protection sleeve of the existing multi-channel trocar is of fixed length, which cannot be used for both abdominal and gastric surgeries at the same time. This makes the production process cumbersome and requires a lot of storage space. Furthermore, if gastric surgery is found to be needed during abdominal surgery, the instrument must be changed, which delays the progress of the surgery.
A segmented multi-channel trocar is designed, which adopts a structure in which the upper flexible cannula and the lower flexible cannula can be separated and connected. It is fixed at the puncture site by the first and second limiting mechanisms, and combined with the sealing mechanism, it can realize trocars of various specifications to meet different surgical needs.
This reduces the variety of trocars produced, saves storage space, improves surgical efficiency, and meets the needs of abdominal and gastric surgeries.
Smart Images
Figure CN224056051U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a segmented multi-channel puncture device. Background Technology
[0002] In minimally invasive surgery, a trocar is usually used to pass through the abdominal cavity to create a channel for surgical instruments. In order to improve surgical efficiency and reduce patient pain, a multi-channel trocar with multiple instrument channels is generally used.
[0003] The multi-channel trocar includes a sealed multi-channel platform and an incision protector. The multi-channel platform has multiple instrument channels for surgical instruments. Existing incision protectors are of fixed length. Shorter protectors are needed for abdominal surgery, while longer protectors are needed for gastric surgery. To accommodate different surgeries, trocars need to be configured with various specifications, leading to a cumbersome production process and requiring significant storage space. Furthermore, if gastric surgery is needed during abdominal surgery, a matching trocar must be obtained, delaying the procedure. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the incision protective sleeves in the prior art are all of fixed length, which cannot be used for both abdominal and gastric surgeries at the same time. In order to carry out different surgeries, the trocars need to be configured with various specifications, which leads to a complicated production process and requires a lot of storage space. Therefore, a segmented multi-channel trocar is provided.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a segmented multi-channel puncture device, comprising a multi-channel platform and an incision protective sleeve, wherein multiple instrument channels are installed on the multi-channel platform;
[0006] The incision protection sleeve includes an upper flexible sleeve with an upper channel inside and a lower flexible sleeve with a lower channel inside. The upper and lower flexible sleeves are distributed vertically and can be separated. The lower end of the upper flexible sleeve is provided with a first limiting mechanism for limiting it to the puncture site, and the lower end of the lower flexible sleeve is provided with a second limiting mechanism for limiting it to the puncture site.
[0007] Furthermore, the first limiting mechanism is a first elastic ring fixed at the lower end of the upper flexible sleeve.
[0008] Furthermore, the upper flexible sleeve and the lower flexible sleeve are snap-fitted together.
[0009] Furthermore, a retaining ring is fixed at the upper end of the lower flexible sleeve, the outer ring of the first elastic ring is fixed to the inner wall of the upper flexible sleeve, and the inner ring has a retaining groove for the retaining ring to be engaged.
[0010] Furthermore, the second limiting mechanism is a second elastic ring fixed at the lower end of the lower flexible sleeve.
[0011] Furthermore, the second limiting mechanism includes a balloon fixed to the lower end of the lower flexible sleeve and a valve body for filling the balloon with a medium.
[0012] Furthermore, a sealing mechanism is provided between the multi-channel platform and the cut-out protective sleeve to seal both.
[0013] Furthermore, the sealing mechanism includes a first flange fixed to the lower end of the multi-channel platform, a second flange fixed to the upper end of the upper flexible sleeve, and a rotary latch for locking the first flange and the second flange. The rotary latch is hinged to either the first flange or the second flange, and the rotary latch is provided with a locking groove for locking the first flange and the second flange.
[0014] Furthermore, a convex ring is fixed at the upper end of the upper flexible sleeve, a sealing gasket is provided between the convex ring and the second flange, a clamping ring is fitted on the first flange, and a protruding part is formed at the lower end of the multi-channel platform, the protruding part is clamped between the first flange and the clamping ring.
[0015] Furthermore, both the upper flexible sleeve and the lower flexible sleeve are thin films.
[0016] The beneficial effects of this utility model are as follows: This utility model utilizes the separation and connection of the upper flexible sleeve and the lower flexible sleeve to form two specifications of trocars, thereby simultaneously meeting the requirements of abdominal surgery and gastric surgery, reducing the types of trocars produced, saving storage space and improving surgical efficiency. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 This is a three-dimensional schematic diagram of the connection between the upper flexible sleeve and the lower flexible sleeve in Embodiment 1;
[0019] Figure 2 This is a front view of the upper flexible sleeve and the lower flexible sleeve connected in Embodiment 1;
[0020] Figure 3 This is a front view of the upper flexible sleeve and the lower flexible sleeve after separation in Embodiment 1;
[0021] Figure 4 This is a cross-sectional view of the upper flexible sleeve and the lower flexible sleeve connected in Embodiment 1;
[0022] Figure 5 yes Figure 4 A magnified view of part A in the middle;
[0023] Figure 6 This is an exploded view of Example 1;
[0024] Figure 7 This is the front view of Embodiment 2;
[0025] In the picture:
[0026] 1. Multi-channel platform; 101. Instrument channel; 102. Protrusion; 103. Cavity;
[0027] 2. Cutting sleeve; 201. Upper flexible sleeve; 2011. Upper channel; 202. Lower flexible sleeve; 2021. Lower channel; 203. First elastic ring; 2031. Groove; 204. Snap ring; 205. Second elastic ring; 206. Balloon; 207. Valve body;
[0028] 3. Sealing mechanism; 301. First flange; 302. Second flange; 303. Rotary lock; 3031. Lock groove; 304. Raised ring; 305. Sealing gasket; 306. Clamping ring; Detailed Implementation
[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components relevant to the present invention. Orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.
[0030] like Figures 1-3 As shown, a segmented multi-channel trocar includes a multi-channel platform 1 and an incision protective sleeve 2 that are fixedly connected. The multi-channel platform 1 has a cavity 103 inside, and multiple instrument channels 101 for surgical instruments to pass through and communicate with the cavity 103 are installed on the multi-channel platform 1.
[0031] The incision protection sleeve 2 includes an upper flexible sleeve 201 with an upper channel 2011 inside and a lower flexible sleeve 202 with a lower channel 2021 inside. The upper flexible sleeve 201 is connected to the multi-channel platform 1 and the upper channel 2011 is connected to the cavity 103. The upper flexible sleeve 201 and the lower flexible sleeve 202 are distributed vertically and can be separated. The lower end of the upper flexible sleeve 201 is provided with a first limiting mechanism for limiting it to the puncture site, and the lower end of the lower flexible sleeve 202 is provided with a second limiting mechanism for limiting it to the puncture site.
[0032] like Figure 3As shown, when the upper flexible cannula 201 and the lower flexible cannula 202 are separated, the multi-channel platform 1 and the upper flexible cannula 201 constitute the main body of the first-specification trocar. During the operation, the first limiting mechanism located at the lower end of the upper flexible cannula 201 is sent into the puncture site and the lower end of the upper flexible cannula 201 is fixed by the first limiting mechanism. Then, air is inflated, and the surgical instruments are sequentially sent through the instrument channel 101, the cavity 103 and the upper channel 2011 to the surgical site for the operation.
[0033] like Figure 2 As shown, when the upper flexible cannula 201 and the lower flexible cannula 202 are connected, the multi-channel platform 1, the upper flexible cannula 201, and the lower flexible cannula 202 constitute the main body of the second-specification trocar. During surgery, the second limiting mechanism located at the lower end of the lower flexible cannula 202 is inserted into the puncture site and fixed at the lower end of the lower flexible cannula 202 by the second limiting mechanism. Then, air is inflated, and the surgical instruments sequentially pass through the instrument channel 101, the cavity 103, the upper channel 2011, and the lower channel 2021 to reach the surgical site for surgery. This application utilizes the separation and connection of the upper flexible cannula 201 and the lower flexible cannula 202 to form two specifications of trocars, thereby simultaneously meeting the requirements of abdominal surgery and gastric surgery, reducing the types of trocars produced, saving storage space, and improving surgical efficiency.
[0034] In some examples, such as Figure 4 As shown, the first limiting mechanism is a first elastic ring 203 fixed at the lower end of the upper flexible sleeve 201. The first elastic ring 203 is made of silicone and can undergo elastic deformation. When the first elastic ring 203 is squeezed to deform it into a narrow and long state, it can be sent into the cut. Then, the first elastic ring 203 is released and the first elastic ring 203 springs back to a circle and is stuck inside the cut.
[0035] In some examples, the upper flexible sleeve 201 and the lower flexible sleeve 202 are snap-fitted together.
[0036] In some examples, such as Figure 4 As shown, the upper end of the lower flexible sleeve 202 is fixed with a retaining ring 204, which is made of silicone material that can undergo elastic deformation. The outer ring of the first elastic ring 203 is fixed to the inner wall of the upper flexible sleeve 201, and the inner ring has a groove 2031 for the retaining ring 204 to be inserted. During operation, the lower flexible sleeve 202 is first inserted into the body and its lower end is fixed by the second limiting mechanism. Then, the upper flexible sleeve 201 is inserted into the body, and the retaining ring 204 is grasped by tweezers or other instruments and pulled upward and inserted into the groove 2031. At this time, the upper flexible sleeve 201 and the lower flexible sleeve 202 are engaged and fixed. The upper channel 2011 and the lower channel 2021 are connected. The instruments can reach the surgical position in sequence through the instrument channel 101, the cavity 103, the upper channel 2011 and the lower channel 2021.
[0037] In some examples, such as Figure 1 and Figure 2 As shown, the second limiting mechanism is a second elastic ring 205 fixed at the lower end of the lower flexible sleeve 202. The second elastic ring 205 is made of silicone and can undergo elastic deformation. When the second elastic ring 205 is squeezed and deformed into a narrow and long state, it can be inserted into the incision. Then, the second elastic ring 205 is released and springs back to a circle, thus locking inside the incision. The number of second elastic rings 205 can be one or two. When there is one, it is located inside the incision. When there are two, one is located inside and the other is located outside.
[0038] In some examples, such as Figure 7 As shown, the second limiting mechanism includes a balloon 206 fixed to the lower end of the lower flexible sleeve 202 and a valve body 207 for filling the balloon 206 with a medium, which can be gas or liquid. When the valve body 207 is not in operation, the balloon 206 is in a deflated state and can be easily inserted into the incision. Then, the valve body 207 operates to inflate the balloon 206 with a medium, thereby fixing the lower end of the lower flexible cannula 202. There can be one or two balloons 206. When there is one balloon, it is located inside the incision. When there are two balloons, they are distributed vertically, with one balloon inside and the other outside during the operation. In this case, there can be one or two valve bodies 207. When there is one valve body 207, the medium is inflated into both balloons 206 simultaneously through the valve body 207. When there are two valve bodies 207, the two valve bodies 207 correspond one-to-one with the two balloons 206, and each valve body 207 inflates its corresponding balloon 206. After the operation, the balloons 206 are deflated or drained to restore their deflated state and can then be removed.
[0039] In some examples, a sealing mechanism 3 is provided between the multi-channel platform 1 and the cut-out protective sleeve 2 to seal both.
[0040] In some examples, such as Figures 4-6As shown, the sealing mechanism 3 includes a first flange 301 fixed to the lower end of the multi-channel platform 1, a second flange 302 fixed to the upper end of the upper flexible sleeve 201, and a rotary lock 303 for locking the first flange 301 and the second flange 302. The rotary lock 303 is hinged to either the first flange 301 or the second flange 302, and the rotary lock 303 is provided with a locking groove 3031 for locking the first flange 301 and the second flange 302. A locking pin protrudes from the locking groove 3031. A groove is provided on a flange 301 or a second flange 302 for the locking pin to be inserted; when the rotary lock 303 is rotated until the locking groove 3031 disengages from the first flange 301 and the second flange 302, the multi-channel platform 1 and the cut-out protective sleeve 2 are unlocked; when the rotary lock 303 is rotated until the first flange 301 and the second flange 302 are engaged in the locking groove 3031, the multi-channel platform 1 and the cut-out protective sleeve 2 are locked; the number of rotary locks 303 can be one, two or three, etc., and several rotary locks 303 are distributed circumferentially.
[0041] In some examples, a convex ring 304 is fixed at the upper end of the upper flexible sleeve 201, a sealing gasket 305 is provided between the convex ring 304 and the second flange 302, a clamping ring 306 is fitted on the first flange 301, and a protruding part 102 is formed at the lower end of the multi-channel platform 1. The protruding part 102 is clamped between the first flange 301 and the clamping ring 306. The clamping ring 306 is a split structure, which includes two snap-fit half rings.
[0042] In some examples, the upper flexible sleeve 201 and the lower flexible sleeve 202 are both thin films made of materials such as plastic or silicone.
[0043] Working principle:
[0044] When the upper flexible cannula 201 and the lower flexible cannula 202 are separated, the multi-channel platform 1 and the upper flexible cannula 201 form the main body of the first-specification trocar. During the operation, the first limiting mechanism located at the lower end of the upper flexible cannula 201 is sent into the puncture site and the lower end of the upper flexible cannula 201 is fixed by the first limiting mechanism. Then, air is inflated and the surgical instruments are sequentially sent through the instrument channel 101, the cavity 103 and the upper channel 2011 to the surgical site for the operation.
[0045] When the upper flexible cannula 201 is connected to the lower flexible cannula 202, the multi-channel platform 1, the upper flexible cannula 201 and the lower flexible cannula 202 constitute the main body of the second-specification trocar. During the operation, the lower flexible cannula 202 is first inserted into the body and its lower end is fixed by the second limiting mechanism. Then, the upper flexible cannula 201 is inserted into the body and the retaining ring 204 is clamped by forceps or other instruments and pulled upward and locked into the retaining groove 2031 of the first elastic ring 203. At this time, the upper flexible cannula 201 and the lower flexible cannula 202 are locked and fixed, and the upper channel 2011 and the lower channel 2021 are connected. Then, air is inflated, and the surgical instruments are sequentially passed through the instrument channel 101, the cavity 103, the upper channel 2011 and the lower channel 2021 to reach the surgical site for operation.
[0046] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A segmented multi-channel puncture device, characterized by: The application relates to a multi-channel platform (1) and a cut protection sleeve (2), wherein the multi-channel platform (1) is provided with a plurality of instrument channels (101); The cut protection sleeve (2) comprises an upper flexible sleeve (201) internally provided with an upper channel (2011) and a lower flexible sleeve (202) internally provided with a lower channel (2021), wherein the upper flexible sleeve (201) and the lower flexible sleeve (202) are arranged in a vertical mode and are detachably connected, the lower end of the upper flexible sleeve (201) is provided with a first limiting mechanism for limiting the upper flexible sleeve (201) at a puncture site, and the lower end of the lower flexible sleeve (202) is provided with a second limiting mechanism for limiting the lower flexible sleeve (202) at the puncture site.
2. The segmented multi-channel puncture device of claim 1, wherein: The first limiting mechanism is a first elastic ring (203) fixed at the lower end of the upper flexible sleeve (201).
3. The segmented multi-channel puncture device of claim 2, wherein: The upper flexible sleeve (201) and the lower flexible sleeve (202) are clamped together.
4. The segmented multi-channel puncture device of claim 3, wherein: The upper end of the lower flexible sleeve (202) is fixed with a clamping ring (204), the outer ring of the first elastic ring (203) is fixed with the inner wall of the upper flexible sleeve (201), and the inner ring is provided with a clamping groove (2031) for clamping the clamping ring (204).
5. The segmented multi-channel puncture device of claim 1, wherein: The second limiting mechanism is a second elastic ring (205) fixed at the lower end of the lower flexible sleeve (202).
6. The segmented multi-channel puncture device of claim 1, wherein: The second limiting mechanism comprises a balloon (206) fixed at the lower end of the lower flexible sleeve (202) and a valve body (207) for inflating the balloon (206) with a medium.
7. The segmented multi-channel puncture device of claim 1, wherein: The multi-channel platform (1) and the cut protection sleeve (2) are provided with a sealing mechanism (3) for sealing the two.
8. The segmented multi-channel puncture device of claim 7, wherein: The sealing mechanism (3) comprises a first flange (301) fixed at the lower end of the multi-channel platform (1), a second flange (302) fixed at the upper end of the upper flexible sleeve (201), and a rotating lock (303) for locking the first flange (301) and the second flange (302), wherein the rotating lock (303) is hinged to any one of the first flange (301) and the second flange (302), and the rotating lock (303) is provided with a locking groove (3031) for locking the first flange (301) and the second flange (302).
9. The segmented multi-channel puncture device of claim 8, wherein: The upper end of the upper flexible sleeve (201) is fixed with a convex ring (304), a sealing gasket (305) is arranged between the convex ring (304) and the second flange (302), a clamping ring (306) is arranged on the first flange (301), the lower end of the multi-channel platform (1) is provided with a convex part (102), and the convex part (102) is clamped between the first flange (301) and the clamping ring (306).
10. The segmented multi-channel puncture device of claim 1, wherein: The upper flexible sleeve (201) and the lower flexible sleeve (202) are both thin films.