A medical adhesive spray device suitable for single port laparoscopic surgery
By using a soft connecting tube, traction plate, and traction ring structure in single-port laparoscopic surgery, the problems of nozzle vibration and angle adjustment were solved, achieving nozzle stability and accurate spraying, simplifying the operation process, and making it suitable for multi-channel single-port laparoscopic surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN HOSPITAL FUDAN UNIV
- Filing Date
- 2025-05-07
- Publication Date
- 2026-07-31
AI Technical Summary
In single-port laparoscopic surgery, the nozzles of existing medical glue spray devices are prone to vibration and cannot be adjusted in angle, resulting in inaccurate spraying, which increases the difficulty of operation and the duration of surgery.
The nozzle and the long tube are connected by a flexible connecting tube, and the nozzle angle is adjusted and stabilized by a traction plate and traction ring structure. The limiting structure prevents nozzle vibration and simplifies operation.
It enables the stability and angle adjustment of the nozzle in single-port laparoscopic surgery, ensuring that the glue is accurately sprayed onto the target area, reducing the difficulty of operation and the operation time.
Smart Images
Figure CN224572771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a medical adhesive spraying device suitable for single-port laparoscopic surgery, belonging to the field of medical product technology. Background Technology
[0002] Currently, the commonly used medical adhesive spray devices for laparoscopy in clinical practice generally consist of a spray bottle 1, a long tube 4, and a nozzle 7, such as... Figure 1 As shown, this allows for the application of medical adhesive to the target area during laparoscopic surgery.
[0003] During use, medical staff discovered the following drawbacks:
[0004] 1. When pressing the spray pump to spray glue, the nozzle often vibrates slightly, causing the spraying area to deviate;
[0005] 2. The existing integrated design of the long tube and nozzle makes it impossible to adjust the nozzle angle during spraying. This means that when spraying certain special areas, medical staff need to manually adjust the nozzle angle, which greatly increases the difficulty of operation and the duration of surgery.
[0006] In laparoscopic surgery, due to the aforementioned drawbacks, medical personnel typically use a method where the right hand holds the spray device for coarse positioning and presses the spray pump, while the left hand holds the laparoscopic gripper to fine-tune the nozzle's position. This method overcomes the inconvenience caused by the product's design flaws in most laparoscopic surgeries, but it presents new challenges in single-port laparoscopic surgery. In single-port laparoscopic surgery, medical personnel use a multi-channel single-port laparoscopic surgical instrument. Under these conditions, if the above method is used to adjust the nozzle position of the laparoscopic medical adhesive spray device, the angle between the gripper head and the nozzle may be too small to grip properly, ultimately preventing the medical adhesive from being sprayed to the desired location during single-port laparoscopic surgery. Summary of the Invention
[0007] The technical problem to be solved by this invention is: how to adjust the nozzle angle and prevent nozzle vibration during single-hole laparoscopic surgery.
[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is to provide a medical glue spraying device suitable for single-port laparoscopic surgery, including a spray bottle, the nozzle of which is connected to one end of a long tube. The other end of the long tube is connected to the nozzle through a flexible connecting tube. The outer side of the nozzle is hinged to one end of a traction plate or rotatably connected through a rotating shaft. The other end of the traction plate is connected to one end of a traction ring, and the traction ring is slidably disposed on the long tube.
[0009] Preferably, the traction ring and / or traction plate are positioned below the long tube by a limiting structure.
[0010] Preferably, the limiting structure includes at least one fixing member, and all fixing members are provided on the long tube; at least one fixing member is provided on the long tube near the traction ring, and the traction plate passes through and is limited on the fixing member.
[0011] Preferably, the limiting structure includes at least two fixing members, with at least one fixing member located on the long tube near the flexible connecting tube.
[0012] Preferably, the fastener includes a fastener body, which is connected to a long tube. A limiting seat is provided on the outer side of the fastener body, and a ring is formed between the limiting seat and the outer wall of the fastener body, through which the traction piece can pass.
[0013] Preferably, the fixing body is a tubular structure, which is sleeved on the outside of the long tube and connected to the long tube with an interference fit; the shape of the ring is the same as the cross-sectional shape of the traction plate.
[0014] Preferably, the traction ring includes a traction ring body with an annular structure. One end of the traction ring body is connected to the other end of the traction plate. A groove is provided on the side of the traction ring body near the long pipe. The shape of the groove matches the outer diameter of the long pipe, and the groove is attached to the outer wall of the long pipe.
[0015] Preferably, the distal end of the traction ring body is provided with an insertion port, and the distal end of the traction ring body is provided with a threaded hole, which is perpendicular to and communicates with the insertion port; one end of the traction plate is inserted into the insertion port, and a screw is screwed into the threaded hole. After one end of the screw is screwed into the threaded hole, it passes through the through hole on the traction plate or directly presses against the traction plate, pressing the traction plate tightly against the inner wall of the insertion port.
[0016] Preferably, the nozzle includes a nozzle body, with multiple slots evenly distributed on the distal circumference of the nozzle body. Two rotating shaft seats are fixed on the outer wall of the nozzle body and arranged in parallel along the circumference of the nozzle body. Rotating shafts are provided on opposite or opposite sides of the rotating shaft seats. The traction plate includes a traction plate body, with two ears arranged in parallel along the width direction of the traction plate body at one end. Each ear has a circular hole in the middle, and each circular hole is fitted onto a rotating shaft.
[0017] Preferably, the flexible connecting tube is a cylindrical structure with tapered ends, and the diameter of the two ends of the flexible connecting tube is smaller than the inner diameter of the middle position of the flexible connecting tube; the nozzle body has a second conical head inserted into the flexible connecting tube at its proximal end, and a second limiting groove is provided on the nozzle body near the second conical head, the second conical head is inserted into one end of the flexible connecting tube, and the tapered end of the flexible connecting tube is limited in the second limiting groove; the long tube includes a long tube body, a connecting seat is connected to the proximal end of the long tube body, the connecting seat is connected and communicates with the nozzle of the spray bottle, the long tube body has a first conical head inserted into the flexible connecting tube at its distal end, a first limiting groove is provided on the long tube body near the first conical head, the first conical head is inserted into the other end of the flexible connecting tube, and the tapered end of the flexible connecting tube is limited in the first limiting groove.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] This invention improves upon existing medical adhesive spraying devices for laparoscopy. Operators can control the stability of the distal end from the proximal end of the long tube, preventing nozzle vibration, and can adjust the angle of the distal nozzle. This invention is simple to operate, cost-controllable, and suitable for different types of multi-channel single-port laparoscopic surgical trocars.
[0020] In single-port laparoscopic surgery, this invention solves the problem that existing medical glue spraying devices cannot accurately spray onto the target area. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a medical adhesive spray device commonly used in clinical practice for laparoscopy.
[0022] Figure 2 This is a schematic diagram of a medical glue spray device suitable for single-port laparoscopic surgery;
[0023] Figure 3 This is a diagram of a spray bottle;
[0024] Figure 4 This is a schematic diagram of the traction ring;
[0025] Figure 5 This is a schematic diagram of a long tube;
[0026] Figure 6 This is a schematic diagram of the traction plate;
[0027] Figure 7 for Figure 6 Enlarged view of position A in the middle;
[0028] Figure 8 This is a schematic diagram of a flexible connector tube;
[0029] Figure 9 This is a schematic diagram of the fastener;
[0030] Figure 10 This is a schematic diagram of the nozzle. Detailed Implementation
[0031] To make this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings.
[0032] This invention provides a medical adhesive spraying device suitable for single-port laparoscopic surgery, such as... Figure 2 As shown, it includes a spray bottle 1, a traction ring 2, a long tube 4, a traction plate 3, a flexible connecting tube 6, a fixing part 5, and a nozzle 7. The spray bottle 1 and one end of the long tube 4 are connected by an interference fit and a snap-fit. The nozzle 7 and the other end of the long tube 4 are connected by the flexible connecting tube 6 (the connection here adopts an injection molding process). The fixing part 5 and the long tube 4 are connected by an interference fit. The outer side of the nozzle 7 is hinged to one end of the traction plate 3 or rotatably connected through a rotating shaft. The traction ring 2 and the other end of the traction plate 3 are locked together by a screw.
[0033] In this embodiment, the traction plate 3 is connected to the outer side of the nozzle 7 by a rotating shaft. When the traction plate 3 moves back and forth, the rotating shaft of the nozzle 7 is pulled / pushed, causing it to rotate around the rotating shaft and form an angle with the long tube 4.
[0034] The traction ring 2 and / or traction plate 3 are positioned below the long tube 4 by a limiting structure. The limiting structure allows the traction ring 2 and traction plate 3 to slide only along the length of the long tube 4 and prevents them from moving radially (i.e., vertically) along the long tube 4.
[0035] The limiting structure includes at least one fixing member 5, which is fixedly mounted on the long tube 4. Specifically, at least one fixing member 5 is located on the long tube 4 near the traction ring 2, and the traction plate 3 passes through and is limited within the ring sleeve 53 on the fixing member 5.
[0036] In this embodiment, the limiting structure includes two fixing members 5. One fixing member 5 is located on the long tube 4 near the traction ring 2, and the other is located on the long tube 4 near the flexible connecting tube 6. The front and rear ends of the traction piece 3 are inserted into the arc-shaped rings 53 on the fixing members 5, and the traction ring 2 can pull the traction piece 3 to move back and forth in the rings 53.
[0037] like Figure 3 As shown, the spray bottle 1 includes a spray bottle body 11, with a pump head 12 that can move up and down on the top of the spray bottle body 11. A nozzle 13 communicating with the inner cavity of the spray bottle body 11 is located on one side of the pump head 12. By pressing the pump head 12, liquid inside the spray bottle body 11 is sprayed out from the nozzle 13. The spray bottle 1 is existing technology and operates on the same principle as various commercially available aerosols.
[0038] like Figure 4As shown, the traction ring 2 includes a traction ring body 21, which is a horizontally arranged "d"-shaped structure. The traction ring body 21 has an operating hole through which an operator's finger can pass (i.e., the traction ring body 21 has a ring structure). The distal end of the traction ring body 21 has an insertion port 22 and a threaded hole 23, which is perpendicular to and communicates with the insertion port 22. One end of the traction piece 3 is inserted into the insertion port 22 of the traction ring body 21 and screwed into the threaded hole 23. The screw passes through the through hole 32 on the traction piece 3 or directly presses against the traction piece 3, pressing the traction piece 3 tightly against the inner wall of the insertion port 22, thereby fixing the traction piece 3 to the traction ring body 21.
[0039] A groove 24 is provided on the side of the traction ring body 21 near the long tube 4. The cross-section of the groove 24 is an arc-shaped structure, and its shape matches the outer diameter of the long tube 4. The groove 24 is attached to the outer wall of the long tube 4, which further restricts the position of the traction ring body 21 on the long tube 4 and prevents the traction ring body 21 from swaying in the left and right directions of the long tube 4.
[0040] like Figure 5 As shown, the long tube 4 includes a long tube body 42. A connecting seat 41 is connected to the proximal end of the long tube body 42. The connecting seat 41 is connected to and communicates with the nozzle 13 of the spray bottle 1. The structure of the distal end of the long tube body 42 is the same as the structure of the flexible connecting tube 6 connected to the nozzle 7. That is, the distal end of the long tube body 42 is provided with a first conical head 44 that is inserted into the flexible connecting tube 6. A first limiting groove 43 is provided on the long tube body 42 near the first conical head 44. After the first conical head 44 is inserted into the flexible connecting tube 6, the end of the flexible connecting tube 6 is limited in the first limiting groove 43, thereby preventing the long tube 4 from separating from the flexible connecting tube 6.
[0041] like Figure 8 As shown, the flexible connector 6 is a cylindrical structure with both ends tapering, meaning that the diameter of the two ends of the flexible connector 6 is smaller than the inner diameter of the middle part of the flexible connector 6.
[0042] like Figure 9 As shown, the fastener 5 includes a fastener body 52. The fastener body 52 has a through hole 51 at its center (i.e., the fastener body 52 is a tubular structure). The size of the through hole 51 matches the outer diameter of the long tube 4. The fastener 5 is press-fitted to the long tube 4 through the through hole 51 and fitted onto the outside of the long tube 4. A limiting seat 54 is provided on the outer side of the fastener body 52. A ring 53 is formed between the limiting seat 54 and the outer wall of the fastener body 52, through which the traction piece 3 can pass. In this embodiment, the shape of the ring 53 is the same as the cross-sectional shape of the traction piece 3; and the ring 53 is a through hole with an arc-shaped cross-section.
[0043] like Figure 10As shown, the nozzle 7 includes a nozzle body 71. Multiple slots 76 are evenly distributed on the distal circumference of the nozzle body 71. A second conical head 73, which inserts into the flexible connecting tube 6, is located near the proximal end of the nozzle body 71. A second limiting groove 72 is provided on the nozzle body 71 near the second conical head 73. This groove limits the end of the flexible connecting tube 6 after the second conical head 73 is inserted into the flexible connecting tube 6, preventing the nozzle 7 from detaching from the flexible connecting tube 6. Two rotating shaft seats 75 are fixed on the outer wall of the nozzle body 71, arranged parallel to each other along the circumference of the nozzle body 71. Rotating shafts 74 are provided on opposite sides of the rotating shaft seats 75, and are rotatably connected to the traction plate 3 via the rotating shafts 74. The rotating shafts 74 are cylindrical.
[0044] like Figure 6 , Figure 7 As shown, the traction plate 3 includes a traction plate body 31. Two ears 33 are arranged side-by-side along the width of the traction plate body 31 at one end. Each ear 33 has a circular hole 34 in the middle, and each circular hole 34 is fitted onto a corresponding rotating shaft 74, allowing the traction plate 3 to be rotatably connected to the nozzle 7. The cross-section of the traction plate body 31 is an arc-shaped structure, matching the outer diameter of the long tube 4, so that one side of the traction plate 3 is attached to the outer wall of the long tube 4.
[0045] The other end of the traction plate body 31 may be provided with a through hole 32 for the screw to pass through and to limit the traction plate 3 to be placed in the insertion port 22 of the traction ring 2; the other end of the traction plate body 31 may not be provided with a through hole 32.
[0046] The traction ring 2 and traction plate 3 are both located below the long tube 4; the traction ring 2 is located near the spray bottle 1, and the operator can hook the traction ring 2 by holding the spray bottle 1 and using their index finger.
[0047] In this embodiment, the spray bottle 1 is made of the same material as existing medical adhesive spray devices for endoscopic use; the traction ring 2 is made of ABS (ABS is acrylonitrile-butadiene-styrene copolymer, a thermoplastic polymer material); the long tube 4 is made of medical-grade PP (PP is polypropylene, a semi-crystalline thermoplastic plastic made from propylene monomers through addition polymerization); the traction piece 3 is made of 316 stainless steel; the flexible connector 6 is made of medical-grade TPE (TPE is thermoplastic elastomer, also known as artificial rubber or synthetic rubber, a polymer synthetic material that combines the elasticity of rubber and the plasticity of plastic); the fixing part 5 is made of medical-grade PP; and the nozzle 7 is made of medical-grade PP.
[0048] The usage process of this utility model is as follows:
[0049] First, the operator holds the spray bottle body 11 with their right hand, pressing the pump head 12 several times with their thumb until the adhesive flows through the long tube 4 and out of the nozzle 7. Then, the operator moves the spray bottle 1 with their right hand to adjust the position of the nozzle 7 to the bonding location, and presses the pump head 12 again with their thumb to apply the adhesive. If the bonding location is obstructed, making it difficult to find a suitable position for the nozzle 7, the operator can insert their index finger into the traction ring 2 and pull the traction ring 2. This will cause the nozzle 7 to swing downwards via the traction plate 3. Pushing the traction ring 2 will cause the nozzle 7 to swing upwards via the traction plate 3. At the same time, the operator can rotate their right wrist to find a suitable position for applying the adhesive.
Claims
1. A medical adhesive spraying device suitable for single-port laparoscopic surgery, comprising a spray bottle (1), wherein the nozzle (13) of the spray bottle (1) is connected to and communicates with one end of a long tube (4), characterized in that, The other end of the long tube (4) is connected to the nozzle (7) through a flexible connecting tube (6); the outer side of the nozzle (7) is hinged to one end of the traction plate (3) or rotatably connected through a rotating shaft, and the other end of the traction plate (3) is connected to one end of the traction ring (2), which is slidably mounted on the long tube (4).
2. The medical adhesive spray device suitable for use in single port laparoscopic surgery of claim 1, wherein, The traction ring (2) and / or traction plate (3) are positioned below the long tube (4) by a limiting structure.
3. A medical adhesive spray device suitable for use in single port laparoscopic surgery according to claim 2, wherein, The limiting structure includes at least one fixing member (5), all of which are located on the long tube (4); at least one fixing member (5) is located on the long tube (4) near the traction ring (2), and the traction plate (3) passes through and is limited on the fixing member (5).
4. The medical adhesive spray device suitable for use in single port laparoscopic surgery of claim 3, wherein, The limiting structure includes at least two fixing members (5), and at least one fixing member (5) is located on the long tube (4) near the flexible connecting tube (6).
5. A medical adhesive spray device suitable for use in single port laparoscopic surgery according to claim 3 or 4, wherein, The fastener (5) includes a fastener body (52), which is connected to the long tube (4). A limiting seat (54) is provided on the outer side of the fastener body (52), and a ring (53) is formed between the limiting seat (54) and the outer wall of the fastener body (52) for the traction piece (3) to pass through.
6. A medical adhesive spray device suitable for use in single port laparoscopic surgery according to claim 5, wherein, The fixing body (52) is a tubular structure. The fixing body (52) is sleeved on the outside of the long tube (4) and is connected to the long tube (4) with an interference fit. The shape of the ring (53) is the same as the cross-sectional shape of the traction piece (3).
7. The medical adhesive spray device suitable for use in single port laparoscopic surgery of claim 1, wherein, The traction ring (2) includes a traction ring body (21), which has an annular structure. One end of the traction ring body (21) is connected to the other end of the traction plate (3). A groove (24) is provided on the side of the traction ring body (21) near the long tube (4). The shape of the groove (24) matches the outer diameter of the long tube (4). The groove (24) is attached to the outer wall of the long tube (4).
8. A medical adhesive spray device suitable for use in single port laparoscopic surgery according to claim 7, wherein, The distal end of the traction ring body (21) is provided with a socket (22) and a threaded hole (23) is provided at the distal end of the traction ring body (21). The threaded hole (23) is perpendicular to and communicates with the socket (22). One end of the traction plate (3) is inserted into the socket (22). A screw is screwed into the threaded hole (23). After one end of the screw is screwed into the threaded hole (23), it passes through the through hole (32) on the traction plate (3) or directly presses against the traction plate (3) to press the traction plate (3) against the inner wall of the socket (22).
9. The medical adhesive spray device suitable for use in single port laparoscopic surgery of claim 1, wherein, The nozzle (7) includes a nozzle body (71), and a plurality of slots (76) are evenly distributed on the far circumference of the nozzle body (71). Two rotating shaft seats (75) are fixed on the outer wall of the nozzle body (71) and arranged in parallel along the circumference of the nozzle body (71). Rotating shafts (74) are provided on opposite or opposite sides of the rotating shaft seats (75). The traction plate (3) includes a traction plate body (31), and two ears (33) are provided at one end of the traction plate body (31) and arranged in parallel along the width direction of the traction plate body (31). A round hole (34) is provided in the middle of each ear (33), and each round hole (34) is fitted onto a rotating shaft (74).
10. The medical adhesive spray device suitable for use in single port laparoscopic surgery of claim 9, wherein, The flexible connecting tube (6) is a cylindrical structure with both ends tapering. The diameter of the two ends of the flexible connecting tube (6) is smaller than the inner diameter of the middle position of the flexible connecting tube (6). The nozzle body (71) is provided with a second conical head (73) that is inserted into the flexible connecting tube (6) near its proximal end. A second limiting groove (72) is provided on the nozzle body (71) near the second conical head (73). The second conical head (73) is inserted into one end of the flexible connecting tube (6), and the tapering of one end of the flexible connecting tube (6) is limited within the second limiting groove (72). The long tube (4) is wrapped with... The device includes a long tube body (42), a connector (41) is connected to the near end of the long tube body (42), the connector (41) is connected to and connected to the nozzle (13) of the spray bottle (1), and a first conical head (44) is provided at the far end of the long tube body (42) for insertion into the flexible connecting tube (6). A first limiting groove (43) is provided on the long tube body (42) near the first conical head (44). The first conical head (44) is inserted into the other end of the flexible connecting tube (6), and the closing limit of the other end of the flexible connecting tube (6) is provided in the first limiting groove (43).