Ultra-micro retractor for single-port laparoscopic minimally invasive surgery

Abstract

The utility model relates to an ultra-micro tractor for minimally invasive surgery under single-hole laparoscopy, including: a needle sleeve and a needle core, the needle sleeve is hollow, the front section of the needle sleeve is provided with two needle sleeve side holes, the rear section is connected with a side sleeve, and the side sleeve and the needle sleeve side hole are located on the same plane. The beneficial effects of the utility model are: the number of puncture kits is reduced, and only one needle sleeve and needle core are needed to achieve puncture and lead insertion, and this tractor is easy to operate compared with the traction needle in the prior art; a needle core groove is provided on the needle core to form a space for the traction line to be inserted, so that the traction line can be punctured into the patient's body by itself, and there is no need to insert the traction line through other puncture holes again, which reduces the operation steps and significantly improves the efficiency; the two ends of the traction are pulled out from the side sleeve, and the length of the traction line can be adjusted, which can avoid the need to replace the traction line due to inappropriate length, reduce unnecessary operations, and improve the efficiency of the operation.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and in particular comprises an ultra-micro traction device for minimally invasive surgery under a single-port laparoscopy. Background Art

[0002] The puncture and traction needle is mainly used for laparoscopic single-port and two-port cholecystectomy and gastrointestinal surgery. The traction wire is led out of the body through the puncture and traction needle to achieve the purpose of minimally invasive surgery through extracorporeal traction.

[0003] The existing puncture traction needle has problems such as complex structure, cumbersome process of inserting the traction line, and difficulty in adjusting the length of the traction line. Therefore, the efficiency is low during use, which affects the normal operation. Therefore, a new puncture traction device is urgently needed to overcome the above problems. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and provide an ultra-micro traction device for minimally invasive surgery under a single-port laparoscopy.

[0005] The ultra-micro tractor for minimally invasive surgery under single-hole laparoscopy comprises: a needle sleeve and a needle core, the needle sleeve is hollow, the front section of the needle sleeve is provided with two needle sleeve side holes, the rear section is connected with a side sleeve, and the side sleeve and the needle sleeve side hole are located on the same plane;

[0006] A needle core groove is provided on one side of the needle core along the length direction. When the needle core is inserted into the needle sleeve, the front end of the needle core extends out from the front end of the needle sleeve, and the needle core groove is connected with the side hole of the needle sleeve and the side sleeve to form a space for the traction line to pass through. The middle part of the traction line extends out of the needle sleeve from the two side holes of the needle sleeve, and the two ends extend out from the side holes of the needle sleeve.

[0007] Preferably, the rear end of the needle sleeve is connected to a needle sleeve limiting sleeve, the needle sleeve limiting sleeve is trumpet-shaped, and the rear end of the needle core is provided with a needle core tail, which is a truncated cone structure.

[0008] Preferably, the front end of the needle core is an inclined surface, and the needle core groove is arranged on one side corresponding to the bottom of the inclined surface.

[0009] Preferably, the width of the needle core groove is greater than the width of the needle sleeve side hole, and the two needle sleeve side holes are arranged in front and behind each other in the front section of the needle sleeve.

[0010] Preferably, the side sleeve faces the rear end of the needle sleeve, and the angle between the side sleeve and the needle sleeve in the length direction is an acute angle.

[0011] The beneficial effects of the utility model are:

[0012] 1) The utility model reduces the number of puncture kits, and only requires one needle sleeve and needle core to achieve puncture and lead insertion. Compared with the traction needle in the prior art, the tractor is easy to operate.

[0013] 2) The utility model provides a needle core groove on the needle core to form a space for inserting a traction line, so that the traction line can be inserted into the patient's body without inserting the traction line through other puncture holes again, thereby reducing the operation steps and significantly improving the efficiency.

[0014] 3) The utility model pulls out the two ends of the traction from the side sleeve, and the length of the traction line can be adjusted, which can avoid the need to replace the traction line due to inappropriate length, reduce unnecessary operations, and improve surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side view of the utility model as a whole;

[0017] Figure 3 It is a front view of the utility model as a whole;

[0018] Figure 4 It is a side sectional view of the utility model;

[0019] Figure 5 It is a schematic diagram of the process of withdrawing the needle core from the needle sleeve;

[0020] Figure 6 A side sectional view of the needle core being pulled out of the needle sleeve;

[0021] Figure 7 It is a front view of the needle core;

[0022] Figure 8 is a front view of the needle sleeve;

[0023] Fig. 9 A side view of the needle sleeve.

[0024] Description of the accompanying drawings: needle sleeve 1, side sleeve 11, needle sleeve side hole 12, needle sleeve limiting sleeve 13, needle core 2, needle core groove 21, needle core tail 22, traction line 3. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the embodiments. The description of the following embodiments is only used to help understand the utility model. It should be pointed out that for ordinary people in this technical field, the utility model can also be modified in some ways without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0026] As an example, Figures 1 to 9As shown, this ultra-micro traction device for minimally invasive surgery under single-port laparoscopy includes: a needle sleeve 1 and a needle core 2. The needle sleeve 1 is hollow, and the front section of the needle sleeve 1 is provided with two needle sleeve side holes 12, and the rear section is connected with a side sleeve 11, which faces the rear end of the needle sleeve 1, and the angle between the side sleeve 11 and the needle sleeve 1 in the length direction is an acute angle.

[0027] The side cannula 11 and the needle sleeve side hole 12 are located on the same plane;

[0028] A needle core groove 21 is provided on one side of the needle core 2 along the length direction. When the needle core 2 is inserted into the needle sleeve 1, the front end of the needle core 2 extends out from the front end of the needle sleeve 1. The front end of the needle core 2 is an inclined surface, and the needle core groove 21 is provided on one side corresponding to the bottom of the inclined surface. Figure 7 shown.

[0029] like Figure 1 and Figure 4 As shown, the needle core groove 21 is connected with the needle sleeve side hole 12 and the side sleeve 11 to form a space for the traction line 3 to pass through. The traction line 3 is a Prolin line. The width of the needle core groove 21 is greater than the width of the needle sleeve side hole 12. The two needle sleeve side holes 12 are arranged in front of each other at the front section of the needle sleeve 1. The middle part of the traction line 3 extends out of the needle sleeve 1 from the two needle sleeve side holes 12, and the two ends extend out from the needle sleeve side holes 12.

[0030] The rear end of the needle sleeve 1 is connected to a needle sleeve limiting sleeve 13, which is trumpet-shaped. The rear end of the needle core 2 is provided with a needle core tail 22, which is a truncated cone structure. When the needle core 2 is inserted into the needle sleeve 1, the needle core tail 22 will be stuck in the needle sleeve limiting sleeve 13, which can effectively prevent the needle core 2 from being over-inserted or even lost in the patient's abdominal cavity, causing surgical accidents, thereby improving safety.

[0031] When using this ultra-micro tractor for minimally invasive surgery under single-hole laparoscopy, first insert the traction line 3 into the needle sleeve 1, so that the middle part of the traction line 3 extends out of the needle sleeve 1 from the two needle sleeve side holes 12, and the two ends extend from the needle sleeve side holes 12, then insert the needle core 2, and make the needle core groove 21 communicate with the needle sleeve side hole 12 and the side sleeve 11, the traction line 3 inside the needle sleeve 1 is arranged between the needle core groove 21 and the inner wall of the needle sleeve 1, forming a puncture needle, and the puncture needle is inserted into the patient's abdominal cavity, without the need to insert the traction line 3 through other puncture holes again, reducing the operation steps and significantly improving the efficiency. After the puncture needle penetrates into the patient's abdominal cavity, the needle core 2 is withdrawn, leaving only the needle sleeve 1 and the traction line 3 in the patient's abdominal cavity to cover the part that needs to be suspended, and then the traction force and length can be adjusted by the tail of the traction line 3 extending from the side sleeve 11, and the part that needs to be suspended is pulled, avoiding the need to replace the traction line 3 due to inappropriate length, reducing unnecessary operations, and improving surgical efficiency.

[0032] If the puncture angle is found to be inappropriate after puncture, the tail of the traction line 3 extending from the side sleeve 11 is tightened to shrink the loop formed by the traction line 3 between the two needle sleeve side holes 12 to a minimum, and then the puncture needle can be withdrawn as a whole, and the needle core 2 can be inserted into the needle sleeve 1 again after repositioning to perform puncture again.

Claims

1. An ultra-micro tractor for single-port laparoscopic minimally invasive surgery, characterized in that: include: The needle sleeve and the needle core are hollow, the front section of the needle sleeve is provided with two needle sleeve side holes, the rear section is connected with a side sleeve, and the side sleeve and the needle sleeve side hole are located on the same plane; A needle core groove is provided on one side of the needle core along the length direction. When the needle core is inserted into the needle sleeve, the front end of the needle core extends out from the front end of the needle sleeve, and the needle core groove is connected with the side hole of the needle sleeve and the side sleeve to form a space for the traction line to pass through. The middle part of the traction line extends out of the needle sleeve from the two side holes of the needle sleeve, and the two ends extend out from the side holes of the needle sleeve.

2. The ultra-micro retractor for single-port laparoscopic minimally invasive surgery according to claim 1, characterized in that: The rear end of the needle sleeve is connected with a needle sleeve limiting sleeve, which is in a trumpet shape. The rear end of the needle core is provided with a needle core tail, which is in a truncated cone structure.

3. The ultra-micro retractor for single-port laparoscopic minimally invasive surgery according to claim 1, characterized in that: The front end of the needle core is an inclined surface, and the needle core groove is arranged on one side corresponding to the bottom of the inclined surface.

4. The ultra-micro retractor for single-port laparoscopic minimally invasive surgery according to claim 1, characterized in that: The width of the needle core groove is greater than the width of the needle sleeve side hole, and the two needle sleeve side holes are arranged in front and behind of the front section of the needle sleeve.

5. The ultra-micro retractor for single-port laparoscopic minimally invasive surgery according to claim 1, characterized in that: The side sleeve faces the rear end of the needle sleeve, and the included angle between the side sleeve and the needle sleeve in the length direction is an acute angle.

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