Laparoscope puncture needle structure

Abstract

The utility model relates to the technical field of medical instruments, and discloses a laparoscope puncture needle structure which comprises a main body mechanism and a sealing mechanism, the sealing mechanism is located behind the main body mechanism, the main body mechanism comprises a puncture needle rod body, a puncture needle head and a puncture needle connecting part, the puncture needle head is located in front of the puncture needle rod body, and the puncture needle connecting part is connected with the sealing mechanism. The puncture needle connecting part is fixedly installed at the rear end of the puncture needle head, the puncture needle connecting part is movably connected with the puncture needle rod body, and the main body mechanism further comprises a first groove, an elastic protrusion and a second groove. According to the laparoscope puncture needle structure, by installing the main body mechanism, in the use process of a puncture needle, a medical worker can rapidly disassemble and assemble a puncture needle head through operation, the medical worker can conveniently replace the puncture needle head, the puncture needle is convenient to disassemble and assemble through a pressing type clamping structure, and the puncture needle is convenient to disassemble and assemble. And the situation that the connecting position slips can be avoided, and the practicability of the puncture needle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and specifically relates to a laparoscopic puncture needle structure. Background Technique

[0002] The abdominal puncture needle is used in laparoscopic surgery and is one of the important instruments in laparoscopic surgery.

[0003] The existing patent document with the publication number CN219109669U provides a reusable laparoscopic puncture needle. For this reusable laparoscopic puncture needle, the puncture needle tip is replaced once for use, which is beneficial to maintaining sharpness during use. The needle rod is convenient for cleaning and long-term recycling use, thereby being able to reduce the replacement cost of the puncture needle, eliminating the concern about unclean cleaning of too thin needles, and also being able to prevent cross-infection. At the same time, according to different body fluids, surgeons can replace puncture needles of different models as needed to aspirate body fluids from patients.

[0004] However, when the existing laparoscopic puncture needle is in use, the threaded connection method makes the disassembly and assembly of the puncture needle rather cumbersome, which is not convenient for medical staff to quickly disassemble and replace the puncture needle tip. Moreover, the puncture needle is easily affected by external forces, resulting in the phenomenon of thread slipping and falling off at the connection, which directly affects the safety of the laparoscopic puncture needle during use and has poor practicability. Content of the Utility Model

[0005] The purpose of the utility model is to provide a laparoscopic puncture needle structure to solve the problem that the threaded connection method makes the disassembly and assembly of the existing laparoscopic puncture needle rather cumbersome as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A laparoscopic puncture needle structure includes a main body mechanism and a sealing mechanism. The sealing mechanism is located behind the main body mechanism. The main body mechanism includes a puncture needle rod body, a puncture needle tip, and a puncture needle connection part. The puncture needle tip is located in front of the puncture needle rod body. The puncture needle connection part is fixedly installed at the rear end of the puncture needle tip. The puncture needle connection part is movably connected to the puncture needle rod body;

[0007] The main body mechanism further includes a first groove, an elastic protrusion, and a second groove. The first groove is fixedly arranged at the outer end of the puncture needle connection part. The elastic protrusion is movably installed inside the first groove. The second groove is fixedly arranged at the outer end of the puncture needle rod body. The elastic protrusion is movably connected to the second groove.

[0008] Preferably, the sealing mechanism includes an anti-slip friction pad and a needle seat. The anti-slip friction pad is fixedly installed at the rear end of the outer end of the puncture needle rod body. The needle seat is fixedly installed at the rear end of the puncture needle rod body.

[0009] Preferably, the sealing mechanism further includes a hollow inner cavity and a sealing gasket. The hollow inner cavity is fixedly arranged inside the puncture needle rod body, and the sealing gasket is fixedly installed inside the puncture needle rod body. The sealing gasket is located outside the hollow inner cavity.

[0010] Preferably, the sealing mechanism further includes a silica gel sealing ring. The silica gel sealing ring is fixedly installed at the outer end of the puncture needle connecting part, and the silica gel sealing ring is movably connected with the puncture needle rod body.

[0011] Preferably, the sealing mechanism further includes a fitting groove. The fitting groove is fixedly arranged at the outer end of the puncture needle rod body, and the second groove is located inside the fitting groove.

[0012] Preferably, the sealing mechanism further includes a spring. The spring is fixedly installed inside the fitting groove.

[0013] Preferably, the sealing mechanism further includes a fitting block. The fitting block is fixedly installed at the lower end of the spring, and the fitting block is slidably connected with the fitting groove.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. For the structure of the laparoscopic puncture needle, by installing the main body mechanism, during the use of the puncture needle, medical staff can quickly disassemble and assemble the puncture needle head through operation, which is convenient for medical staff to replace the puncture needle head. The pressing type clamping structure makes the disassembly and assembly of the puncture needle convenient, and can avoid the situation of slippage at the connection, improving the practicability of the puncture needle;

[0016] 2. For the structure of the laparoscopic puncture needle, by installing the sealing mechanism, when using the puncture needle for puncture operation in laparoscopic surgery, the design of the sealing gasket and the silica gel sealing ring provides a double sealing effect for the connection between the puncture needle rod body and the puncture needle head, so as to avoid the situation of liquid leakage in the puncture drainage operation, improving the protection performance of the puncture needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 is a three-dimensional structure schematic diagram of the puncture needle connecting part of the present utility model;

[0019] Figure 3 is a three-dimensional structure schematic diagram of the sealing mechanism of the present utility model;

[0020] Figure 4 is a partial detailed enlarged structure schematic diagram of the main body mechanism of the present utility model.

[0021] In the figure: 1. Main body mechanism; 101. Puncture needle rod body; 102. Puncture needle tip; 103. Puncture needle connection part; 104. First groove; 105. Elastic protrusion; 106. Second groove; 2. Sealing mechanism; 201. Anti-slip friction pad; 202. Needle holder; 203. Hollow inner cavity; 204. Sealing pad; 205. Silicone rubber sealing ring; 206. Fitting groove; 207. Spring; 208. Fitting block. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0023] Please refer to Figure 1 - Figure 4 , the present invention provides a technical solution: a laparoscopic puncture needle structure, including a main body mechanism 1 and a sealing mechanism 2. The sealing mechanism 2 is located behind the main body mechanism 1. The main body mechanism 1 includes a puncture needle rod body 101, a puncture needle tip 102 and a puncture needle connection part 103. The puncture needle tip 102 is located in front of the puncture needle rod body 101. The puncture needle connection part 103 is fixedly installed at the rear end of the puncture needle tip 102. The puncture needle connection part 103 is movably connected to the puncture needle rod body 101;

[0024] The main body mechanism 1 further includes a first groove 104, an elastic protrusion 105 and a second groove 106. The first groove 104 is fixedly arranged at the outer end of the puncture needle connection part 103. The elastic protrusion 105 is movably installed inside the first groove 104. The second groove 106 is fixedly arranged at the outer end of the puncture needle rod body 101. The elastic protrusion 105 is movably connected to the second groove 106. When using this puncture needle structure for laparoscopic surgery puncture operation, the medical staff places the puncture needle tip 102 in front of the puncture needle rod body 101 and makes the puncture needle connection part 103 correspond to the puncture needle rod body 101. The medical staff presses the elastic protrusion 105 to retract it into the first groove 104, and then inserts the puncture needle connection part 103 into the puncture needle rod body 101. After sufficient connection, the first groove 104 corresponds to the second groove 106, and the elastic protrusion 105 resets and connects with the second groove 106 to complete the connection of the puncture needle structure. After the puncture needle is used, the medical staff presses the elastic protrusion 105 to separate it from the second groove 106, and then pulls the puncture needle connection part 103 to pull it out of the puncture needle rod body 101 to realize the disassembly of the waste puncture needle tip 102.

[0025] The sealing mechanism 2 includes an anti-slip friction pad 201 and a needle seat 202. The anti-slip friction pad 201 is fixedly installed at the rear end of the outer end of the puncture needle rod body 101, and the needle seat 202 is fixedly installed at the rear end of the puncture needle rod body 101. The sealing mechanism 2 further includes a hollow inner cavity 203 and a sealing pad 204. The hollow inner cavity 203 is fixedly arranged inside the puncture needle rod body 101, and the sealing pad 204 is fixedly installed inside the puncture needle rod body 101. The sealing pad 204 is located outside the hollow inner cavity 203. The sealing mechanism 2 further includes a silicone rubber sealing ring 205. The silicone rubber sealing ring 205 is fixedly installed at the outer end of the puncture needle connecting portion 103, and the silicone rubber sealing ring 205 is movably connected to the puncture needle rod body 101. The sealing mechanism 2 further includes a fitting groove 206. The fitting groove 206 is fixedly arranged at the outer end of the puncture needle rod body 101. The second groove 106 is located inside the fitting groove 206. The sealing mechanism 2 further includes a spring 207. The spring 207 is fixedly installed inside the fitting groove 206. The sealing mechanism 2 further includes a fitting block 208. The fitting block 208 is fixedly installed at the lower end of the spring 207. The fitting block 208 is slidably connected to the fitting groove 206. Under the elastic potential energy of the spring 207, the fitting block 208 protects the second groove 106, completing the connection of the puncture needle structure. The sealing pad 204 ensures the sealing performance at the connection between the puncture needle rod body 101 and the puncture needle connecting portion 103, and the silicone rubber sealing ring 205 ensures the sealing performance at the connection end of the puncture needle rod body 101. Medical staff hold the anti-slip friction pad 201 with their hands, and then connect the needle seat 202 to the pipeline, and then the puncture drainage operation can be carried out. After the puncture needle is used up, medical staff slide the fitting block 208, causing the spring 207 to be compressed, and at this time the second groove 106 is exposed.

[0026] Working principle: When performing a puncture operation for laparoscopic surgery using this puncture needle structure, medical staff place the puncture needle tip 102 in front of the puncture needle rod body 101 and make the puncture needle connection part 103 correspond to the puncture needle rod body 101. The medical staff presses the elastic protrusion 105 to retract it into the first groove 104, and then inserts the puncture needle connection part 103 into the puncture needle rod body 101, with the hollow inner cavity 203 inside the puncture needle connection part 103. After sufficient connection, the first groove 104 corresponds to the second groove 106, and the elastic protrusion 105 resets and connects with the second groove 106. The fitting block 208 protects the second groove 106 under the elastic potential energy of the spring 207, completing the connection of the puncture needle structure. The sealing gasket 204 ensures the sealing performance at the connection between the puncture needle rod body 101 and the puncture needle connection part 103, and the silicone rubber sealing ring 205 ensures the sealing performance at the connection end of the puncture needle rod body 101. The medical staff holds the anti-slip friction pad 201 with their hand and then connects the needle seat 202 to the pipeline to perform the puncture and drainage operation. After the puncture needle is used, the medical staff slides the fitting block 208 to compress the spring 207. At this time, the second groove 106 is exposed. The medical staff presses the elastic protrusion 105 to separate it from the second groove 106, and then pulls the puncture needle connection part 103 to pull it out of the puncture needle rod body 101, realizing the disassembly of the discarded puncture needle tip 102.

[0027] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than limiting the protection scope of the present invention. Any simple modification or equivalent replacement made by those of ordinary skill in the art to the technical solution of the present invention shall not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A laparoscopic puncture needle structure, comprising a main body structure (1) and a sealing structure (2), characterized in that: The sealing mechanism (2) is located at the rear of the main mechanism (1); the main mechanism (1) comprises a puncture needle shaft (101), a puncture needle head (102) and a puncture needle connecting portion (103); the puncture needle head (102) is located at the front of the puncture needle shaft (101); the puncture needle connecting portion (103) is fixedly mounted at the rear end of the puncture needle head (102); and the puncture needle connecting portion (103) is movably connected to the puncture needle shaft (101); The main body mechanism (1) further comprises a first groove (104), an elastic protrusion (105) and a second groove (106); the first groove (104) is fixedly arranged at the outer end of the puncture needle connecting portion (103); the elastic protrusion (105) is movably mounted inside the first groove (104); the second groove (106) is fixedly arranged at the outer end of the puncture needle rod body (101); and the elastic protrusion (105) is movably connected to the second groove (106).

2. A laparoscopic puncture needle structure according to claim 1, characterized in that: The sealing mechanism (2) comprises an anti-skid friction pad (201) and a needle seat (202); the anti-skid friction pad (201) is fixedly mounted on the rear end of the outer end of the puncture needle rod body (101); and the needle seat (202) is fixedly mounted on the rear end of the puncture needle rod body (101).

3. A laparoscopic puncture needle structure according to claim 2, characterized in that: The sealing mechanism (2) further comprises a hollow inner cavity (203) and a sealing pad (204); the hollow inner cavity (203) is fixedly arranged inside the puncture needle shaft (101); the sealing pad (204) is fixedly installed inside the puncture needle shaft (101); and the sealing pad (204) is located outside the hollow inner cavity (203).

4. A laparoscopic puncture needle structure according to claim 3, characterized in that: The sealing mechanism (2) further comprises a silicone sealing ring (205), wherein the silicone sealing ring (205) is fixedly mounted on the outer end of the puncture needle connecting portion (103), and the silicone sealing ring (205) is movably connected to the puncture needle rod body (101).

5. A laparoscopic puncture needle structure according to claim 4, characterized in that: The sealing mechanism (2) further comprises an embedding groove (206), wherein the embedding groove (206) is fixedly arranged at the outer end of the puncture needle rod body (101), and the second groove (106) is located inside the embedding groove (206).

6. A laparoscopic puncture needle structure according to claim 5, characterized in that: The sealing mechanism (2) further comprises a spring (207), wherein the spring (207) is fixedly mounted inside the fitting groove (206).

7. A laparoscopic puncture needle structure according to claim 6, characterized in that: The sealing mechanism (2) further comprises an engaging block (208), wherein the engaging block (208) is fixedly mounted on the lower end of the spring (207), and the engaging block (208) is slidably connected to the engaging groove (206).

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