Perfusion pipeline structure suitable for endoscopic surgery

Abstract

The utility model provides a perfusion pipeline structure suitable for endoscopic surgery, which relates to the field of medical instruments and comprises an inserting needle, an upper connecting pipe, a connecting main pipe, a lower connecting pipe and a connector piece which are connected in sequence. The two ends of the connecting main pipe are each provided with a first connecting end cover, the first end, facing the connecting main pipe, of the upper connecting pipe, and the first end, facing the connecting main pipe, of the lower connecting pipe are each provided with a second connecting end cover. The first connecting end cover and the corresponding second connecting end cover are connected through a detachable connecting part, a circulation channel is formed in the detachable connecting part, the main connecting pipe and the upper connecting pipe are communicated through the circulation channel, and the main connecting pipe and the lower connecting pipe are communicated through the circulation channel. The device has the advantages of being convenient to disassemble, convenient to clean and capable of reducing waste.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a perfusion pipeline structure suitable for endoscopic surgery. Background Art

[0002] Irrigation pumps are commonly used for fluid infusion during endoscopic surgery. Liquid infusion typically involves squeezing the perfusion tubing through the pump's rotary disk, driving the fluid flow within the tubing.

[0003] In existing technology, the squeezed portion of the perfusion tubing is made of highly wear-resistant silicone tubing. The ends of the tubing are typically glued to the other tubing, making it non-detachable. This makes cleaning and sterilizing the inner wall of the perfusion tubing difficult, so it must be discarded as a single use, resulting in waste. Utility Model Content

[0004] In order to facilitate disassembly, thereby facilitating cleaning and reducing waste, the present application provides a perfusion pipeline structure suitable for endoscopic surgery.

[0005] In order to solve the above problems, the technical solution of the utility model is:

[0006] A perfusion pipeline structure suitable for endoscopic surgery, comprising a pin, an upper connecting pipe, a connecting main pipe, a lower connecting pipe and a connector connected in sequence;

[0007] Wherein, a first connecting end cap is provided on both ends of the connecting main pipe, and a second connecting end cap is provided on the first end of the upper connecting pipe facing the connecting main pipe and the first end of the lower connecting pipe facing the connecting main pipe; the first connecting end cap and the corresponding second connecting end cap are connected by a detachable connecting portion, and a circulation channel is opened inside the detachable connecting portion, the circulation channel connects the connecting main pipe and the upper connecting pipe, and the circulation channel connects the connecting main pipe and the lower connecting pipe.

[0008] The utility model is suitable for an irrigation pipeline structure for endoscopic surgery, and the detachable connecting part includes a fixed body, a first expansion part and a second expansion part; the first expansion part is fixed to one end of the fixed body facing the connecting main pipe, and the second expansion part is fixed to one end of the fixed body facing the upper connecting pipe or the lower connecting pipe, and the fixed connection of the fixed body is achieved by friction.

[0009] The utility model is suitable for the perfusion pipeline structure of endoscopic surgery. The first expansion portion is provided with a first inclined annular surface. The diameter of the first inclined annular surface gradually increases along the axis of the fixed body and from the connecting main pipe toward the upper connecting pipe or the lower connecting pipe.

[0010] A first matching annular surface is formed on the inner wall of the first connecting end cover. The first matching annular surface is parallel to the first inclined annular surface, and the first matching annular surface and the first inclined annular surface interact with each other to squeeze the end of the connecting main pipe.

[0011] The utility model is suitable for the perfusion pipeline structure of endoscopic surgery. The second expansion portion is provided with a second inclined annular surface. The diameter of the second inclined annular surface gradually decreases along the axis of the fixed body and from the connecting main pipe toward the upper connecting pipe or the lower connecting pipe.

[0012] A second matching annular surface is formed on the inner wall of the second connecting end cover. The second matching annular surface is parallel to the second inclined annular surface. The second matching annular surface and the second inclined annular surface interact with each other to squeeze the end of the upper connecting tube or the lower connecting tube.

[0013] The utility model is suitable for an irrigation pipeline structure for endoscopic surgery, wherein the circulation channel is an inner cavity in which the first expansion part, the fixed body and the second expansion part are connected in sequence; a first thread and a second thread are provided on the fixed body, the first thread cooperates with the corresponding first connecting end cover to realize a threaded connection, and the second thread cooperates with the corresponding second connecting end cover to realize a threaded connection.

[0014] In the perfusion pipeline structure suitable for endoscopic surgery of the present invention, a fixing ring is provided on the outer side wall of the fixing body, and the fixing ring is located between the first thread and the second thread.

[0015] The utility model is suitable for the perfusion pipeline structure of endoscopic surgery. A sealing tube is provided between the insertion needle and the upper connecting tube. One end of the sealing tube is fixed to the insertion needle, and the other end of the sealing tube is inserted into the second end of the upper connecting tube.

[0016] The utility model is suitable for the perfusion pipeline structure of endoscopic surgery. The sealing tube is divided into a connecting section and a sealing section. One end of the connecting section is fixed to the insertion needle, and the other end of the connecting section is fixed to the sealing section. The outer wall of the sealing section is provided with a plurality of sealing annular surfaces, and the sealing annular surfaces are arranged in an inclined manner.

[0017] Furthermore, the sealing annular surface contacts the inner wall of the upper connecting pipe.

[0018] The utility model is suitable for the perfusion pipeline structure of endoscopic surgery, wherein the upper connecting pipe, the main connecting pipe and the lower connecting pipe are all made of silicone or PVC.

[0019] The utility model is a perfusion pipeline structure suitable for endoscopic surgery, wherein the connector is a Luer connector.

[0020] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0021] 1. This solution realizes detachable connection by connecting the corresponding first connecting end cap and the second connecting end cap through a detachable connecting portion; compared with the traditional bonding method, this solution can disassemble the perfusion pipeline structure, thereby facilitating subsequent cleaning and sterilization, thereby achieving the effect of reuse and reducing waste.

[0022] Second, the fixed body is provided with a first expansion portion and a second expansion portion, and the first expansion portion is provided with a first inclined annular surface, and the second expansion portion is provided with a second inclined annular surface; therefore, the first expansion portion is connected to the connecting main pipe, so that the end of the connecting main pipe is deformed and expanded, and a fixed connection is achieved by friction; the second expansion portion is similar;

[0023] The first inclined annular surface and the first matching annular surface interact with each other to achieve a fixed sealing connection between the first connecting end cover and the first expansion part and the connecting main pipe, and the second inclined annular surface and the second matching annular surface interact with each other to achieve a fixed sealing connection between the second connecting end cover and the second expansion part and the upper connecting pipe or the lower connecting pipe.

[0024] 3. The pin is connected to the upper connecting tube through the sealing tube, and the outer wall of the sealing section of the sealing tube has a sealing annular surface, which makes the surface of the sealing section uneven, thereby increasing the contact area with the inner wall of the upper connecting tube; on the one hand, the connection between the sealing tube and the upper connecting tube is tighter, and on the other hand, the sealing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the overall structure of the perfusion pipeline structure suitable for endoscopic surgery in the embodiment of the present application

[0026] Figure 2 Exploded diagram of the perfusion pipeline structure suitable for endoscopic surgery in the embodiment of the present application

[0027] Figure 3 Schematic diagram of the fixed main structure connected to the first connecting end cap for endoscopic surgery according to the embodiment of the present application

[0028] Figure 4 Schematic diagram of the structure of the Luer connector suitable for endoscopic surgery in the embodiment of the present application

[0029] Description of reference numerals:

[0030] 1. Insert pin; 2. Upper connecting tube; 3. Main connecting tube; 4. Lower connecting tube; 5. Luer connector; 6. First connecting end cap; 7. Second connecting end cap; 8. Flow channel; 9. Fixed body; 10. First thread; 11. Second thread; 13. Fixed ring; 14. Sealing tube; 15. First expansion portion; 16. Second expansion portion; 17. First inclined annular surface; 18. First matching annular surface; 19. Second inclined annular surface; 20. Second matching annular surface. DETAILED DESCRIPTION

[0031] The following is a detailed description of a perfusion pipe structure suitable for endoscopic surgery proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims.

[0032] See Figures 1 to 4 This embodiment provides a perfusion pipeline structure suitable for endoscopic surgery, comprising an insertion pin 1, an upper connecting tube 2, a main connecting tube 3, a lower connecting tube 4, and a connector, which are sequentially connected. First connecting end caps 6 are provided at both ends of the main connecting tube 3, and second connecting end caps 7 are provided at both the first end of the upper connecting tube 2 facing the main connecting tube 3 and the first end of the lower connecting tube 4 facing the main connecting tube 3. The first connecting end caps 6 and the corresponding second connecting end caps 7 are connected by a detachable connecting portion, and a flow channel 8 is defined within the detachable connecting portion. The flow channel 8 connects the main connecting tube 3 with the upper connecting tube 2, and the flow channel 8 connects the main connecting tube 3 with the lower connecting tube 4.

[0033] This solution is connected to the corresponding first connecting end cap 6 and second connecting end cap 7 through a detachable connecting portion to achieve a detachable connection; compared with the traditional bonding method, this solution can disassemble the perfusion pipeline structure, thereby facilitating subsequent cleaning and sterilization, thereby achieving the effect of reuse and reducing waste.

[0034] The implementation process of this solution is mainly as follows: the pin 1, upper connecting tube 2, connecting main tube 3, lower connecting tube 4 and connector are installed in sequence, and the connector will be connected to the external perfusion pump; the liquid flows through the connector, lower connecting tube 4, connecting main tube 3, upper connecting tube 2 in sequence, and then flows out from the pin 1.

[0035] It is further provided that the connecting main pipe 3 is in a U-shape, and the connector is a Luer connector 5 .

[0036] The specific structure of the perfusion pipeline structure applicable to endoscopic surgery in this embodiment is further described below:

[0037] In this embodiment, the detachable connection portion includes a fixed body 9, a first expansion portion 15 and a second expansion portion 16; the first expansion portion 15 is fixed to one end of the fixed body 9 facing the connecting main pipe 3, and the second expansion portion 16 is fixed to one end of the fixed body 9 facing the upper connecting pipe 2 or the lower connecting pipe 4, and the fixed connection of the fixed body 9 is achieved by friction.

[0038] Furthermore, the first expansion portion 15 and the second expansion portion 16 are integrally formed on the fixing body 9 .

[0039] In this embodiment, a first inclined annular surface 17 is formed on the first expansion portion 15. The diameter of the first inclined annular surface 17 gradually increases along the axis of the fixed body 9 and from the connecting main pipe 3 toward the upper connecting pipe 2 or the lower connecting pipe 4.

[0040] A first matching annular surface 18 is formed on the inner wall of the first connection end cover 6 . The first matching annular surface 18 is parallel to the first inclined annular surface 17 . The first matching annular surface 18 and the first inclined annular surface 17 interact with each other to squeeze the end of the connection main pipe 3 .

[0041] In this embodiment, a second inclined annular surface 19 is formed on the second expansion portion 16. The diameter of the second inclined annular surface 19 gradually decreases along the axis of the fixed body 9 and from the connecting main pipe 3 toward the upper connecting pipe 2 or the lower connecting pipe 4.

[0042] A second matching annular surface 20 is formed on the inner wall of the second connecting end cover 7 . The second matching annular surface 20 is parallel to the second inclined annular surface 19 . The second matching annular surface 20 and the second inclined annular surface 19 interact with each other to squeeze the end of the upper connecting tube 2 or the lower connecting tube 4 .

[0043] The fixed body 9 is provided with a first expansion portion 15 and a second expansion portion 16. The first expansion portion 15 is provided with a first inclined annular surface 17, and the second expansion portion 16 is provided with a second inclined annular surface 19. Therefore, the first expansion portion 15 is connected to the connecting main pipe 3, so that the end of the connecting main pipe 3 is deformed and expanded, and a fixed connection is achieved through friction. The second expansion portion 16 is similar.

[0044] The first inclined annular surface 17 and the first matching annular surface 18 interact with each other to achieve a fixed sealing connection between the first connecting end cover 6 and the first expansion portion 15 and the connecting main pipe 3, and the second inclined annular surface 19 and the second matching annular surface 20 interact with each other to achieve a fixed sealing connection between the second connecting end cover 7 and the second expansion portion 16 and the upper connecting pipe 2 or the lower connecting pipe 4.

[0045] In this embodiment, the circulation channel 8 is an inner cavity that is connected in sequence by the first expansion portion 15, the fixed body 9 and the second expansion portion 16; the fixed body 9 is provided with a first thread 10 and a second thread 11, the first thread 10 cooperates with the corresponding first connecting end cover 6 to realize a threaded connection, and the second thread 11 cooperates with the corresponding second connecting end cover 7 to realize a threaded connection.

[0046] During installation, first put the first connecting end cover 6 on the connecting main pipe 3, then put the second connecting end cover 7 on the upper connecting pipe 2 or the lower connecting pipe 4, and then insert the fixing body 9 into the corresponding connecting main pipe 3 and the upper connecting pipe 2 or the lower connecting pipe 4, so that the ends of the upper connecting pipe 2, the lower connecting pipe 4 and the connecting main pipe 3 are slightly enlarged. Then, when the first connecting end cover 6 is rotated to match the first thread 10, the first inclined annular surface 17 and the first matching annular surface 18 interact to achieve a fixed sealing connection between the first connecting end cover 6 and the first expansion portion 15 to the connecting main pipe 3. The same is true when the second connecting end cover 7 is rotated to match the second thread 11 for connection.

[0047] In this embodiment, a fixing ring 13 is provided on the outer side wall of the fixing body 9 , and the fixing ring 13 is located between the first thread 10 and the second thread 11 .

[0048] It is further configured that when the first connecting end cover 6 matches the first thread 10, the end of the first connecting end cover 6 facing the corresponding second connecting end cover 7 abuts against the side wall of the fixing ring 13; when the second connecting end cover 7 matches the second thread 11, the end of the second connecting end cover 7 facing the first connecting end cover 6 abuts against the side wall of the fixing ring 13.

[0049] To further explain, the fixing ring 13 and the fixing body 9 are integrally formed.

[0050] In this embodiment, a sealing tube 14 is provided between the pin 1 and the upper connecting tube 2 . One end of the sealing tube 14 is fixed to the pin 1 , and the other end of the sealing tube 14 is inserted into the second end of the upper connecting tube 2 .

[0051] To further explain, the channel inside the sealing tube 14 is connected to the upper connecting tube 2 and the pin 1.

[0052] To further illustrate, the sealing tube 14 and the insertion pin 11 are integrally formed. When the sealing tube 14 is connected to the upper connecting tube 2, the connecting tube is in an expanded state, and a fixed connection is achieved through friction.

[0053] In this embodiment, the sealing tube 14 is divided into a connecting section and a sealing section; one end of the connecting section is fixed to the pin 1, and the other end of the connecting section is fixed to the sealing section; a plurality of sealing annular surfaces are provided on the outer wall of the sealing section, and the sealing annular surfaces are arranged at an angle; and the sealing annular surfaces are in contact with the inner wall of the upper connecting tube 2.

[0054] It is further explained that the pin 1 is connected to the upper connecting tube 2 through the sealing tube 14, and the outer wall of the sealing section of the sealing tube 14 has a sealing annular surface, which makes the surface of the sealing section uneven, thereby increasing the contact area with the inner wall of the upper connecting tube 2; on the one hand, the sealing tube 14 and the upper connecting tube 2 are connected more tightly, and on the other hand, the sealing effect is better.

[0055] It is further provided that the diameter of the sealing ring surface gradually increases from the first end of the fixed body 9 to the second end of the fixed body 9 .

[0056] In this embodiment, the upper connecting pipe 2 , the main connecting pipe 3 and the lower connecting pipe 4 are all made of silicone or PVC.

[0057] Preferably, the connecting main pipe 3 is a highly wear-resistant silicone tube.

[0058] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they will still fall within the scope of protection of the present invention.

Claims

1. A perfusion pipeline structure suitable for endoscopic surgery, characterized in that: It includes a pin, an upper connecting pipe, a connecting main pipe, a lower connecting pipe and a connector which are connected in sequence; Wherein, a first connecting end cap is provided on both ends of the connecting main pipe, and a second connecting end cap is provided on the first end of the upper connecting pipe facing the connecting main pipe and the first end of the lower connecting pipe facing the connecting main pipe; the first connecting end cap and the corresponding second connecting end cap are connected by a detachable connecting portion, and a circulation channel is opened inside the detachable connecting portion, the circulation channel connects the connecting main pipe and the upper connecting pipe, and the circulation channel connects the connecting main pipe and the lower connecting pipe.

2. The perfusion pipeline structure suitable for endoscopic surgery according to claim 1, characterized in that: The detachable connection part includes a fixed body, a first expansion part and a second expansion part; the first expansion part is fixed to one end of the fixed body facing the connecting main pipe, and the second expansion part is fixed to one end of the fixed body facing the upper connecting pipe or the lower connecting pipe, and the fixed connection of the fixed body is achieved by friction.

3. The perfusion pipeline structure suitable for endoscopic surgery according to claim 2, characterized in that: A first inclined annular surface is formed on the first expansion portion, and the diameter of the first inclined annular surface gradually increases along the axis of the fixed body and from the connecting main pipe toward the upper connecting pipe or the lower connecting pipe; A first matching annular surface is formed on the inner wall of the first connecting end cover. The first matching annular surface is parallel to the first inclined annular surface, and the first matching annular surface and the first inclined annular surface interact with each other to squeeze the end of the connecting main pipe.

4. The perfusion pipeline structure suitable for endoscopic surgery according to claim 3, characterized in that: A second inclined annular surface is formed on the second expansion portion, and the diameter of the second inclined annular surface gradually decreases along the axis of the fixed body and from the connecting main pipe toward the upper connecting pipe or the lower connecting pipe; A second matching annular surface is formed on the inner wall of the second connecting end cover. The second matching annular surface is parallel to the second inclined annular surface. The second matching annular surface and the second inclined annular surface interact with each other to squeeze the end of the upper connecting tube or the lower connecting tube.

5. The perfusion pipeline structure suitable for endoscopic surgery according to claim 4, characterized in that: The circulation channel is an inner cavity in which the first expansion part, the fixed body and the second expansion part are connected in sequence; the fixed body is provided with a first thread and a second thread, the first thread cooperates with the corresponding first connection end cover to realize a threaded connection, and the second thread cooperates with the corresponding second connection end cover to realize a threaded connection.

6. The perfusion pipeline structure suitable for endoscopic surgery according to claim 5, characterized in that: A fixing ring is provided on the outer side wall of the fixing body, and the fixing ring is located between the first thread and the second thread.

7. The perfusion pipeline structure suitable for endoscopic surgery according to claim 1, characterized in that: A sealing tube is provided between the insertion pin and the upper connecting tube. One end of the sealing tube is fixed to the insertion pin, and the other end of the sealing tube is plugged into the interior of the second end of the upper connecting tube.

8. The perfusion pipeline structure suitable for endoscopic surgery according to claim 7, characterized in that: The sealing tube is divided into a connecting section and a sealing section; one end of the connecting section is fixed to the insertion pin, and the other end of the connecting section is fixed to the sealing section; a plurality of sealing ring surfaces are formed on the outer wall of the sealing section, and the sealing ring surfaces are arranged in an inclined manner; Furthermore, the sealing annular surface contacts the inner wall of the upper connecting pipe.

9. The perfusion pipeline structure suitable for endoscopic surgery according to claim 1, characterized in that: The upper connecting pipe, the main connecting pipe and the lower connecting pipe are all made of silicone or PVC.

10. The perfusion pipeline structure suitable for endoscopic surgery according to claim 1, characterized in that: The connector is a Luer connector.

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