Endoscope puncture outfit

Abstract

The utility model discloses an endoscope puncture outfit which comprises a puncture tube, a telescopic device is arranged on the upper portion of the outer wall of the puncture tube, the top end of the puncture tube is fixedly connected with an annular connector, an air guide hole is formed in the front end of the annular connector, an air injection valve is arranged on the annular connector, and a fixing structure is arranged in the middle of the rear end of the annular connector. A puncture needle is movably connected in the puncture tube and the annular joint, and the top end of the puncture needle is fixedly connected with a push block; the fixing structure comprises a fixing groove formed in the rear portion of the top end of the annular connector, a first threaded hole is formed in the rear wall of the fixing groove, a fixing block is inserted into the fixing groove, the top end of the fixing block is fixedly connected to the push block, a second threaded hole used in cooperation with the first threaded hole is formed in the fixing block, and threaded rods are connected into the first threaded hole and the second threaded hole in a threaded mode. The utility model has the advantages that the telescopic device is designed, so that the length of the puncture tube entering the body of a patient can be accurately controlled; and a fixing structure is designed, so that the puncture tube and the puncture needle are connected more stably, and the situation of falling is reduced.

Description

Technical Field

[0001] This utility model relates to the field of puncture device technology, specifically to a laparoscopic puncture device. Background Technology

[0002] A puncture device is a medical tool that mainly consists of a tip, a body, and a handle. It is used to penetrate body tissue during medical procedures to achieve diagnostic or therapeutic purposes. When the tip is pulled out of the body, the body can also serve as a passage for other devices to enter and exit the patient's body.

[0003] Chinese patent CN219354095U discloses a laparoscopic trocar, belonging to the field of trocars. It includes a trocar cannula with a trocar needle movably installed inside. An air injection valve is fixedly installed on one side of the trocar cannula, and a support mechanism is fixedly installed on the other side. The support mechanism includes a support rod, a receiving tube, a rotating ring, an arc-shaped rod, a screw, a first movable tube, a pressure table, a second movable tube, and a fixed table. The support rod is located on the side of the trocar cannula, the first movable tube is located outside one of the receiving tubes, and the second movable tube is located outside the other. Through the support structure, the arc-shaped rod rotates upward within the receiving tube, supporting the head of the trocar cannula. Moving the screw downward allows it to support the external abdomen or the edge of the operating table, providing external support for the trocar cannula, resulting in better stability, a more stable surgical channel, and easier surgical operation. However, there are still some shortcomings that can be improved.

[0004] 1. This utility model uses a puncture cannula to puncture the patient's body. However, as is well known, different patients have different physical conditions and body thicknesses. If a fixed-size puncture cannula is used for puncture, it is very easy for the puncture length to be too long, which could lead to the puncture needle puncturing the patient's organs.

[0005] 2. The puncture needle and puncture tube of this utility model are only connected by a movable joint. During operation, medical staff need to hold the puncture needle and puncture tube with one hand at the same time, and then insert the puncture tube into the patient's body. During this process, it is very easy for the puncture needle to fall out of the puncture tube, which is a very dangerous situation.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the above-mentioned problems and provide a laparoscopic puncture device.

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a laparoscopic puncture device, including a puncture tube, a telescopic device is provided on the upper part of the outer wall of the puncture tube, an annular connector is fixedly connected to the top end of the puncture tube and communicates with it, an air guide hole is opened in the middle of the front end of the annular connector and communicates with its inner wall, an air injection valve is fixedly connected to the front end of the annular connector and communicates with the air guide hole, a fixing structure is provided in the middle of the rear end of the annular connector, a puncture needle is movably connected inside the puncture tube and the annular connector, and a push block is fixedly connected to the top end of the puncture needle;

[0009] The fixing structure includes a fixing groove at the rear of the top of the annular joint, a threaded hole 1 on the rear wall of the fixing groove, a fixing block inserted into the fixing groove, the top of the fixing block being fixedly connected to the push block, and a threaded hole 2 on the fixing block for use with the threaded hole 1. The threaded hole 1 and the threaded hole 2 are internally threaded to a threaded rod.

[0010] As an improvement, the telescopic device includes an externally threaded sleeve fixedly connected to the upper part of the outer wall of the puncture tube, and an annular baffle is fixedly connected to the top end of the externally threaded sleeve.

[0011] As an improvement, an internal threaded sleeve is threadedly connected to the outer wall of the external threaded sleeve, and an annular baffle is fixedly connected to the bottom end of the internal threaded sleeve.

[0012] As an improvement, a protective shell is fitted onto the outer wall of the internally threaded sleeve. The top of the protective shell is fixedly connected to an annular baffle. A detection hole is opened on one side of the protective shell, and a set of scale grooves are opened on the protective shell to cooperate with the detection hole.

[0013] As an improvement, a butterfly-wing screw block is fixedly connected to the rear end of the threaded rod.

[0014] As an improvement, the rear end of the annular joint is fixedly connected to an annular washer that mates with a threaded hole, and the front end of the butterfly wing screw block is used in conjunction with the annular washer.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1. This utility model has a telescopic device installed on the upper part of the outer wall of the puncture tube. Through the telescopic device, medical staff can push the annular baffle two to the designated position in advance through the external threaded sleeve, so that the annular baffle two can control the length of the puncture tube entering the patient's body, greatly reducing the possibility of patient injury due to excessive insertion of the puncture tube.

[0017] 2. This utility model has a fixing device at the rear end of the annular connector. The fixing device allows the puncture tube and the puncture needle to be connected together, thereby ensuring that the puncture tube and the puncture needle will not detach during the insertion into the patient's body, increasing safety. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of a laparoscopic puncture device according to this utility model.

[0019] Figure 2 This utility model relates to the structure of a laparoscopic puncture device. Figure 1 .

[0020] Figure 3 This utility model relates to the structure of a laparoscopic puncture device. Figure 2 .

[0021] Figure 4 This is an enlarged view of a laparoscopic puncture device of this utility model at point A.

[0022] As shown in the figure:

[0023] 1. Puncture tube;

[0024] 2. Telescopic device; 201. External threaded sleeve; 202. Annular baffle one; 203. Internal threaded sleeve; 204. Annular baffle two; 205. Protective shell; 206. Detection hole;

[0025] 3. Ring connector; 4. Air vent;

[0026] 5. Air injection valve;

[0027] 6. Fixing structure; 601. Fixing groove; 602. Threaded hole one; 603. Fixing block; 604. Threaded hole two; 605. Threaded rod; 606. Butterfly wing screw block; 607. Annular washer;

[0028] 7. Puncture needle; 8. Push block. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] The working principle of this utility model is as follows: Figures 1-4As shown, a laparoscopic puncture device includes a puncture tube 1. An annular connector 3 is fixedly connected to the top of the puncture tube 1. It should be noted that the annular connector 3 and the puncture tube 1 are connected. A puncture needle 7 is movably connected within the annular connector 3 and the puncture tube 1. A pusher 8 is fixedly connected to the top of the puncture needle 7. During use, medical personnel hold the pusher 8 and the annular connector 3, and then insert the puncture tube 1 and the puncture needle 7 into the patient's body. To control the length of the puncture tube 1 inserted into the patient's body, a telescopic device 2 is provided on the upper part of the outer wall of the puncture tube 1. Since the puncture tube 1 and the puncture needle 7 may separate during the puncture process, a fixing structure 6 is provided at the rear of the annular connector 3 to solve this problem. Additionally, an air inlet 4 communicating with its inner wall is opened at the middle of the front end of the annular connector 3. An air injection valve 5 communicating with the air inlet 4 is fixedly connected to the front end of the annular connector 3.

[0031] The above-mentioned structures together constitute the general appearance of the laparoscopic puncture device of this utility model.

[0032] To further explain the specific working principle of the laparoscopic puncture device of this utility model, the telescopic device 2 includes an externally threaded sleeve 201 fixedly connected to the upper part of the outer wall of the puncture tube 1. An annular baffle 202 is fixedly connected to the top of the externally threaded sleeve 201, and a protective shell 205 is fixedly connected to the bottom of the annular baffle 202. It should be noted that the externally threaded sleeve 201 is located inside the protective shell 205, and an internally threaded sleeve 203 is slidably connected to the inner wall of the protective shell 205. Here, it should be noted that the internally threaded sleeve 203 is located between the protective shell 205 and the externally threaded sleeve 201. Between 01 and 02, the internal threaded sleeve 203 and the external threaded sleeve 201 are threadedly connected. In addition, the outer wall of the internal threaded sleeve 203 is sprayed with a striking color. Then, an annular baffle 204 is fixedly connected to the bottom end of the internal threaded sleeve 203. The annular baffle 204 is used to block the puncture tube 1 from going deeper into the patient's body. Finally, in order to allow medical staff to clearly see the elongation of the internal threaded sleeve 203, a probe hole 206 is opened on either side of the protective shell 205. In addition, for easy reading, a set of scale grooves are opened on the protective shell 205 to cooperate with the probe hole 206.

[0033] The technical effect achieved by the technical solution composed of the above-mentioned technical features is as follows: when it is necessary to extend the internal threaded sleeve 203, it is only necessary to turn the internal threaded sleeve 203. Then the internal threaded sleeve 203 will push the annular baffle 204 downward. The amount of extension of the internal threaded sleeve 203 can be clearly read by medical staff through the through-hole probe 206 and the scale groove. When it is moved to the specified length, the medical staff will push the puncture tube 1 into the patient's body. The annular baffle 204 can control the length of the puncture tube 1 inserted into the patient's body. At the same time, the contact between the annular baffle 204 and the patient can also reduce the tilt of the puncture tube 1, thus improving the practicality of the device.

[0034] To further explain the specific working principle of the laparoscopic trocar of this utility model, the aforementioned fixing structure 6 includes a fixing block 603 fixedly connected to the middle of the rear side of the bottom end of the push block 8. Simultaneously, a fixing groove 601 for use with the fixing block 603 is opened in the middle of the rear side of the top end of the annular connector 3. The fixing block 603 is inserted into the fixing groove 601. A second threaded hole 604 is opened on the fixing block 603, and a first threaded hole 602 for use with the second threaded hole 604 is opened in the middle of the rear wall of the fixing groove 601. Here, in order to fix the fixing block 603 on the push block 8, a first threaded hole 602 is opened in the threaded groove 603. A threaded rod 605 is internally threaded to hole 602 and threaded hole 604. A butterfly-wing screw block 606 is fixedly connected to the rear end of the threaded rod 605. Since the threaded rod 605 may loosen, an annular washer 607 that matches the threaded hole 602 is fixedly connected to the rear end of the annular joint 3. It should be noted that the front end of the butterfly-wing screw block 606 matches the annular washer 607, and the annular washer 607 has a certain friction. When stationary or under slight vibration, the butterfly-wing screw block 606 will not drive the threaded rod 605 to rotate due to the annular washer 607.

[0035] The technical effect achieved by the technical solution composed of the above-mentioned technical features is as follows: After the puncture tube 1 and the puncture needle 7 are inserted into the patient's body, the medical staff first turn the butterfly wing screw block 606. The butterfly wing screw block 606 will drive the threaded rod 605 fixedly connected to it to rotate together. When the threaded rod 605 is completely removed from the threaded hole 604 on the fixing block 603, the threaded rod 605 no longer restricts the fixing block 603 in the fixing groove 601. At this time, the medical staff can pull out the puncture needle 7.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

[0037] The detailed description of known functions and components is omitted in this disclosure. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of commercially available instruments.

Claims

1. A laparoscopic trocar, comprising a trocar tube (1), characterized in that: A telescopic device (2) is provided on the upper part of the outer wall of the puncture tube (1). A ring connector (3) communicating with the top end of the puncture tube (1) is fixedly connected. An air guide hole (4) communicating with the inner wall of the ring connector (3) is opened in the middle of the front end. An air injection valve (5) communicating with the air guide hole (4) is fixedly connected to the front end of the ring connector (3). A fixing structure (6) is provided in the middle of the rear end of the ring connector (3). A puncture needle (7) is movably connected inside the puncture tube (1) and the ring connector (3). A push block (8) is fixedly connected to the top end of the puncture needle (7). The fixing structure (6) includes a fixing groove (601) at the rear of the top of the annular joint (3). A threaded hole (602) is opened on the rear wall of the fixing groove (601). A fixing block (603) is inserted into the fixing groove (601). The top of the fixing block (603) is fixedly connected to the push block (8). A threaded hole (604) is opened on the fixing block (603) to cooperate with the threaded hole (602). A threaded rod (605) is threadedly connected to the threaded hole (602) and the threaded hole (604).

2. The laparoscopic puncture device according to claim 1, characterized in that: The telescopic device (2) includes an external threaded sleeve (201) fixedly connected to the upper part of the outer wall of the puncture tube (1), and an annular baffle (202) is fixedly connected to the top end of the external threaded sleeve (201).

3. The laparoscopic puncture device according to claim 2, characterized in that: An internal threaded sleeve (203) is threadedly connected to the outer wall of the external threaded sleeve (201), and an annular baffle (204) is fixedly connected to the bottom end of the internal threaded sleeve (203).

4. The laparoscopic trocar according to claim 3, characterized in that: A protective shell (205) is fitted onto the outer wall of the internal threaded sleeve (203). The top end of the protective shell (205) is fixedly connected to an annular baffle (202). A detection hole (206) is opened on one side of the protective shell (205). A set of scale grooves that cooperate with the detection hole (206) are opened on the protective shell (205).

5. The laparoscopic trocar according to claim 1, characterized in that: The rear end of the threaded rod (605) is fixedly connected to a butterfly-wing screw block (606).

6. The laparoscopic trocar according to claim 5, characterized in that: The rear end of the annular connector (3) is fixedly connected to an annular washer (607) that is used in conjunction with the threaded hole (602), and the front end of the butterfly wing screw block (606) is used in conjunction with the annular washer (607).

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