Single-hole multi-channel puncture outfit

Abstract

The utility model relates to the technical field of medical instruments, in particular to a single-hole multi-channel puncture outfit which comprises a sealing shell, an incision sleeve is detachably connected to the bottom end of the sealing shell, a connecting piece is arranged between the sealing shell and the incision sleeve, the connecting piece comprises an embedded sleeve fixedly installed at the bottom end of the sealing shell, the embedded sleeve is clamped in the incision sleeve, and the incision sleeve is fixedly connected with the sealing shell. Buckles are distributed on the outer portion of the embedded sleeve in a surrounding mode, notches are formed in the buckles, arc-shaped plates are connected into the notches in a sleeved mode, limiting blocks are fixedly installed at one ends of the arc-shaped plates, and the inner sides of the arc-shaped plates are installed on the outer portion of the notch sleeve and close to the outer portion of the upper ring. A cover body on the outer side of the sealing shell is rotated, a buckle inside the sealing shell rotates in the radial direction of an upper ring of the incision sleeve until an arc-shaped plate outside the incision sleeve enters a notch and the buckle rotates to abut against a limiting block to complete installation, an external puncture needle is inserted into an instrument tube, operation is conducted through the incision sleeve, the sealing shell is rotated to rotate along the arc-shaped plate to conduct angle adjustment, and shaking is avoided; and the stability can be improved while the angle is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a single-hole multi-channel puncture device. Background Art

[0002] Single-hole multi-channel puncture devices are usually used for endoscopic examinations or interventional procedures, such as laparoscopic surgery. This instrument is designed with multiple channels in the same channel, which can introduce multiple tools, optical fibers or gases at the same time. Through a single puncture hole and multiple matching instrument channels, doctors can perform multiple operations, insert one end of an incision protection cover into the body, and insert specially made extended surgical instruments from the channel of the single-hole multi-channel surgical device for operation.

[0003] In the prior art, for example, a patent with announcement number CN209404894U discloses a combined single-hole puncture device, including an operating platform, wherein the operating platform includes an operating platform 1 and an operating platform 2, a step surface is provided between the operating platform 1 and the operating platform 2, a card slot is provided at the edge of the operating platform 2, the operating platform 1 is provided with a plurality of instrument channels, an air inlet pipe and an air outlet pipe provided on both sides of the instrument channel; and a tubular channel, wherein the operating platform and the tubular channel are detachably connected by a buckle.

[0004] The above structure utilizes a stepped surface so that the instrument channel can be adjusted to various angles as required. However, when the doctor adjusts the multi-channel puncture device, the stability between the operating platform and the tubular channel is poor because rotation is required when adjusting the angle. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a single-hole multi-channel puncture device to solve the problem of poor airtightness between the sealing shell and the incision sleeve and poor stability due to the need to rotate when adjusting the angle.

[0006] Based on the above purpose, the utility model provides a single-hole multi-channel puncture device, including a sealing shell, the two sides of the top of the sealing shell are respectively provided with an air inlet pipe and an air outlet pipe, and the top of the sealing shell is fixedly installed with multiple sets of instrument tubes, the bottom end of the sealing shell is detachably connected with an incision sleeve, the upper and lower ends of the incision sleeve are respectively connected with a buckle and an upper ring, a connecting piece is provided between the sealing shell and the incision sleeve, and the sealing shell, the incision sleeve and the connecting piece are all silicone material components;

[0007] The connecting piece comprises an inner nest fixedly installed at the bottom end of the sealing shell, the inner nest is clamped in the cutout sleeve, buckles are distributed around the outside of the inner nest, a notch is opened inside the buckle, an arc plate is sleeved in the notch, a limit block is fixedly installed at one end of the arc plate, and the inner side of the arc plate is installed outside the cutout sleeve and close to the outside of the upper ring;

[0008] Preferably, a sealing strip is installed on the outside of the inner nest, and a ring groove 1 is opened inside the cut sleeve, and the sealing strip matches the ring groove 1;

[0009] The inner wall of the cutout sleeve is also provided with a retaining strip, and the inner part of the inner nest is provided with a second ring groove, and the retaining strip matches the second ring groove;

[0010] Preferably, the sealing strip and the baffle are arranged vertically opposite to each other, and both the sealing strip and the baffle are annular structures.

[0011] Preferably, the outer portion of the inner nest is stepped, the outer diameter of the bottom end of the inner nest is larger than the inner diameter of the cutout sleeve, and the inner nest and the cutout sleeve are interference fit.

[0012] Preferably, there are at least four groups of buckles and arc-shaped plates, and the other end of the arc-shaped plate is chamfered.

[0013] Preferably, an arc groove corresponding to the outer side of the arc plate is opened in the notch, and the upper ring and the arc plate are accommodated inside the notch.

[0014] The beneficial effects of the utility model are as follows: the incision sleeve and the lower ring are first inserted into the patient's body, the air inlet pipe and the air outlet pipe are respectively connected to external equipment, and then the inner nest in the sealing shell is vertically inserted into the incision sleeve, and the notch of the inner nest is kept in contact with the upper ring of the incision sleeve;

[0015] Then rotate the cover body on the outside of the sealing shell, and the internal buckle rotates radially along the upper ring of the incision sleeve until the arc plate outside the incision sleeve enters the notch, and until the buckle rotates to hit the limit block at one end of the arc plate to complete the installation. Insert the external puncture needle into the instrument tube, operate through the incision sleeve, rotate the sealing shell along the arc plate to adjust the angle to avoid shaking, and improve stability while adjusting the angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0018] Figure 2 It is a structural schematic diagram of the connecting piece of the utility model;

[0019] Figure 3 It is a schematic diagram of the half-section structure of the utility model as a whole;

[0020] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A.

[0021] The markings in the figure are: 1. sealing shell; 2. incision sleeve; 21. lower ring; 22. upper ring; 3. air inlet pipe; 4. air outlet pipe; 5. connecting piece; 6. instrument tube; 7. inner nesting; 8. sealing strip; 9. ring groove one; 10. baffle strip; 11. ring groove two; 12. buckle; 13. notch; 14. arc plate; 15. limit block; 16. cover body. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a single-hole multi-channel trocar comprises a sealing shell 1, an air inlet pipe 3 and an air outlet pipe 4 are respectively arranged on both sides of the top of the sealing shell 1, and a plurality of sets of instrument tubes 6 are fixedly installed on the top of the sealing shell 1, an incision sleeve 2 is detachably connected to the bottom end of the sealing shell 1, a buckle 12 and an upper ring 22 are respectively connected to the upper and lower ends of the incision sleeve 2, a connector 5 is arranged between the sealing shell 1 and the incision sleeve 2, and the sealing shell 1, the incision sleeve 2 and the connector 5 are all made of silicone material;

[0024] The connecting member 5 includes an inner nest 7 fixedly installed at the bottom end of the sealing shell 1, the inner nest 7 is clamped in the cutout sleeve 2, and buckles 12 are distributed around the outer part of the inner nest 7. A notch 13 is opened inside the buckle 12, and an arc plate 14 is sleeved in the notch 13. A limit block 15 is fixedly installed at one end of the arc plate 14, and the inner side of the arc plate 14 is installed outside the cutout sleeve 2 and close to the outer side of the upper ring 22;

[0025] In this embodiment, the incision sleeve 2 and the lower ring 21 are first inserted into the patient's body, the air inlet pipe 3 and the air outlet pipe 4 are respectively connected to external equipment, and then the inner nest 7 in the sealing shell 1 is vertically inserted into the incision sleeve 2, and the notch of the inner nest 7 is kept in contact with the upper ring 22 of the incision sleeve 2;

[0026] Then rotate the cover body 16 on the outside of the sealing shell 1, and the internal buckle 12 rotates radially along the upper ring 22 of the incision sleeve 2 until the arc plate 14 outside the incision sleeve 2 enters the notch 13, and until the buckle 12 rotates to contact the limit block 15 at one end of the arc plate 14 to complete the installation, insert the external puncture needle into the instrument tube 6, operate through the incision sleeve 2, rotate the sealing shell 1 along the arc plate 14 to adjust the angle, avoid shaking, and improve stability while adjusting the angle.

[0027] As an implementation method, Figure 2 , Figure 3 and Figure 4 As shown, a sealing strip 8 is installed on the outside of the inner nest 7, and a ring groove 9 is opened inside the cut sleeve 2, and the sealing strip 8 matches the ring groove 9;

[0028] The inner wall of the cutout sleeve 2 is also provided with a stopper 10, and the inner part of the inner nest 7 is provided with a second annular groove 11, and the stopper 10 and the second annular groove 11 match each other;

[0029] The sealing strip 8 and the blocking strip 10 are arranged in an up-and-down manner, and both the sealing strip 8 and the blocking strip 10 are annular structures.

[0030] In this embodiment, the inner nest 7 in the sealing shell 1 is then vertically inserted into the interior of the cutout sleeve 2, and the inner wall retaining strip 10 of the cutout sleeve 2 is snapped into the annular groove 11 in the inner nest 7. At the same time, the sealing strip 8 on the outer side of the inner nest 7 is snapped into the annular groove 1 9 in the cutout sleeve 2. The combination of the annular groove 1 9 and the annular groove 1 1 1 forms a wave shape to block the airflow, keep the notch of the inner nest 7 in contact with the upper ring 22 of the cutout sleeve 2, and ensure a good airtight effect.

[0031] As an implementation method, Figure 1 As shown, a cover body 16 is fixedly installed on the outside of the inner nest 7, and the cover body 16 is a transparent material component.

[0032] In this embodiment, when the operation process requires a rotation angle, the buckle 12 is observed through the transparent cover 16 to prevent the buckle 12 from being separated from the arc plate 14.

[0033] As an implementation method, Figure 2 , Figure 3 and Figure 4 As shown, the outer portion of the inner nest 7 is stepped, the outer diameter of the bottom end of the inner nest 7 is larger than the inner diameter of the cutout sleeve 2, and the inner nest 7 and the cutout sleeve 2 are interference fit.

[0034] Implementation

[0035] As an implementation method, Figure 2 and Figure 4 As shown, there are at least four groups of buckles 12 and arc-shaped plates 14, and the other end of the arc-shaped plate 14 is rounded.

[0036] In this embodiment, the cover body 16 outside the sealing shell 1 is rotated, and the internal buckle 12 is rotated radially along the upper ring 22 of the cut sleeve 2 until the other end of the arc plate 14 with rounded corners outside the cut sleeve 2 enters the notch 13, so that the arc plate 14 can quickly enter the buckle 12 for fastening;

[0037] The combination of the four groups of buckles 12 and the arc plate 14 improves the connection tightness between the sealing shell 1 and the cutout sleeve 2 .

[0038] As an implementation method, Figure 2 As shown, an arc groove corresponding to the outer side of the arc plate 14 is opened in the notch 13, and the upper ring 22 and the arc plate 14 are accommodated in the notch 13.

[0039] In this embodiment, by using the arc groove, the notch 13 in the buckle 12 cooperates with the arc plate 14. When the sealing shell 1 is rotated, the sealing shell 1 rotates along the arc plate 14 to adjust the angle, which is more lubricated.

[0040] Working principle: When in use, the incision sleeve 2 and the lower ring 21 are first inserted into the patient's body, and the air inlet pipe 3 and the air outlet pipe 4 are respectively connected to external equipment, and then the inner nest 7 in the sealing shell 1 is vertically inserted into the inside of the incision sleeve 2, and the inner wall stopper 10 of the incision sleeve 2 is clamped into the ring groove 2 11 in the inner nest 7, and at the same time, the sealing strip 8 on the outer side of the inner nest 7 is clamped into the ring groove 1 9 in the incision sleeve 2, and the notch of the inner nest 7 is kept in contact with the upper ring 22 of the incision sleeve 2 to ensure a good airtight effect;

[0041] Then, the cover body 16 on the outside of the sealing shell 1 is rotated, and the internal buckle 12 is radially rotated along the upper ring 22 of the incision sleeve 2 until the arc plate 14 outside the incision sleeve 2 enters the notch 13, and until the buckle 12 is rotated to contact the limit block 15 at one end of the arc plate 14 to complete the installation, and the external puncture needle is inserted into the instrument tube 6, and the operation is performed through the incision sleeve 2. When the operation process requires rotation of the angle, the buckle 12 is observed through the transparent cover body 16, and the sealing shell 1 is rotated to rotate along the arc plate 14 to adjust the angle to avoid shaking, which can improve stability while changing the puncture angle.

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0043] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A single-hole multi-channel trocar, comprising a sealing shell (1), wherein an air inlet pipe (3) and an air outlet pipe (4) are respectively arranged on both sides of the top of the sealing shell (1), and a plurality of sets of instrument tubes (6) are fixedly mounted on the top of the sealing shell (1), characterized in that: The bottom end of the sealing shell (1) is detachably connected to a notch sleeve (2), and the upper and lower ends of the notch sleeve (2) are respectively connected to a buckle (12) and an upper ring (22), and a connecting piece (5) is provided between the sealing shell (1) and the notch sleeve (2), and the sealing shell (1), the notch sleeve (2) and the connecting piece (5) are all made of silicone material; the connecting piece (5) comprises an inner nest (7) fixedly installed at the bottom end of the sealing shell (1), the inner nest (7) is snap-fitted into the notch sleeve (2), and buckles (12) are distributed around the outside of the inner nest (7), a notch (13) is provided inside the buckle (12), and an arc plate (14) is sleeved inside the notch (13), and a limiting block (15) is fixedly installed at one end of the arc plate (14), and the inner side of the arc plate (14) is installed outside the notch sleeve (2) and close to the outside of the upper ring (22).

2. A single-hole multi-channel puncture device according to claim 1, characterized in that: A sealing strip (8) is installed on the outside of the inner nest (7), and a first annular groove (9) is provided on the inside of the cut sleeve (2), and the sealing strip (8) matches the first annular groove (9); a retaining strip (10) is also installed on the inner wall of the cut sleeve (2), and a second annular groove (11) is provided on the inside of the inner nest (7), and the retaining strip (10) matches the second annular groove (11).

3. A single-hole multi-channel puncture device according to claim 2, characterized in that: The sealing strip (8) and the baffle strip (10) are arranged in an up-and-down manner, and both the sealing strip (8) and the baffle strip (10) are annular structures.

4. A single-hole multi-channel puncture device according to claim 2, characterized in that: The outer portion of the inner nest (7) is stepped, the outer diameter of the bottom end of the inner nest (7) is larger than the inner diameter of the cutout sleeve (2), and the inner nest (7) and the cutout sleeve (2) are interference fit.

5. A single-hole multi-channel puncture device according to claim 4, characterized in that: A cover body (16) is fixedly mounted on the outside of the inner nest (7), and the cover body (16) is a transparent material component.

6. A single-hole multi-channel puncture device according to claim 1, characterized in that: There are at least four groups of the buckles (12) and the arc-shaped plates (14), and the other end of the arc-shaped plates (14) is chamfered.

7. A single-hole multi-channel puncture device according to claim 1, characterized in that: An arc groove corresponding to the outer side of the arc-shaped plate (14) is provided in the notch (13), and the upper ring (22) and the arc-shaped plate (14) are accommodated inside the notch (13).

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