Puncture outfit

Abstract

The utility model discloses a puncture outfit, which relates to the technical field of medical apparatus and instruments, and comprises a catheter provided with a channel inside and an insertion end, the insertion end is provided with a mounting port communicated with the channel, the outer side wall of the catheter is provided with a limiting groove, and the limiting groove is arranged at one end, far away from the insertion end, of the mounting port and is communicated with the mounting port; the connecting body comprises a connecting part and a limiting part which are in bent connection, and one end, close to the limiting part, of the connecting part is hinged to the mounting opening; the puncture head is connected with the end, away from the limiting part, of the connecting part, and the puncture head has a first state and a second state; in the first state, the puncture head rotates to the end part of the catheter to seal the channel; in the second state, the puncture head rotates to one side of the catheter and opens the channel, and the limiting part is clamped into the limiting groove. According to the technical scheme, the puncture knife of the puncture outfit is improved, waste of the puncture knife is prevented, and meanwhile puncture operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a puncture device. Background Technology

[0002] In existing technologies, puncture devices are typically equipped with two key components: a catheter and a puncture knife. During a puncture procedure, the puncture knife is first used to penetrate the patient's skin and tissue to create a passage. Once the puncture is successfully completed, the catheter is left in place and secured to the patient's abdominal wall to keep the created passage open. Meanwhile, the puncture knife, originally used to perform the puncture, is discarded as a single-use item. While this method ensures a sterile environment during the procedure, it also leads to resource waste. Furthermore, the process involves inserting the puncture knife into the catheter and removing it after the puncture, which is time-consuming, laborious, and affects surgical efficiency. Utility Model Content

[0003] The main purpose of this invention is to provide a puncture device that simplifies puncture procedures and reduces the waste of puncture knives.

[0004] To achieve the above objectives, this utility model proposes a puncture device, comprising:

[0005] The catheter has an internal channel and an insertion end. The insertion end has an installation port that communicates with the channel. The outer wall of the catheter has a limiting groove located at the end of the installation port away from the insertion end and communicating with the installation port.

[0006] A connector includes a bent connecting part and a limiting part, wherein one end of the connecting part near the limiting part is hinged to the mounting port;

[0007] A puncture head is connected to one end of the connecting portion away from the limiting portion. The puncture head has a first state and a second state. In the first state, the puncture head rotates to the end of the catheter to close the channel. In the second state, the puncture head rotates to one side of the catheter and opens the channel, and the limiting portion is engaged with the limiting groove.

[0008] In one embodiment, the two opposite sidewalls of the connecting portion are provided with protrusions, and the two opposite inner walls of the mounting port are provided with connecting holes. The protrusions are inserted into the connecting holes and rotate in cooperation with the connecting holes.

[0009] In one embodiment, the channel is offset from the axis of the conduit, and the direction of the offset is away from the limiting groove.

[0010] In one embodiment, the depth of the limiting groove is less than the wall thickness of the conduit.

[0011] In one embodiment, the insertion end is provided with a limiting port, which is located on both sides of the channel, and a limiting body is provided at the end of the puncture head facing the catheter. In the first state, the limiting body is inserted into the limiting port.

[0012] In one embodiment, the width of the limiting body decreases in the direction away from the puncture head, and the limiting port is adapted to the limiting body.

[0013] In one embodiment, the connector is integrally formed with the puncture head.

[0014] In one embodiment, the side of the limiting portion away from the conduit is an arc surface, and in the second state, the arc surface is flush with the outer peripheral surface of the conduit.

[0015] In one embodiment, the puncture device further includes a limiting ring, which is slidably sleeved on the catheter. In the second state, the limiting ring slides to be directly opposite the limiting groove to limit the puncture head.

[0016] In this utility model, the insertion end of the catheter is provided with an installation port, and a limiting groove communicating with the installation port is provided on the side wall of the catheter. A connector is provided at the installation port, and the connecting part of the connector is bent and connected to the limiting part. One end of the connecting part near the limiting part is hinged to the installation port. In addition, a puncture head is provided at the end of the connecting part away from the limiting part. The puncture head can swing with the connecting part and has a first state and a second state. In the first state, the puncture head rotates to the end of the catheter and closes the catheter. At this time, the limiting part is set perpendicular to the catheter. In this state, a puncture operation can be performed, and the puncture head can be inserted into the skin. During the puncture process, the puncture head and the connecting part gradually pass through the skin until the connection position between the connecting part and the limiting part contacts the skin. Then, the insertion continues, and the skin will push the limiting part closer to the limiting groove. The puncture head rotates and swings away from the catheter until the limiting part is embedded in the limiting groove. The puncture head rotates to one side of the catheter and opens the channel. At this time, other medical instruments can directly pass through the channel for surgery. This is the second state. In this state, the puncture head can form a limiting with the skin on one side of the body, restricting the catheter from being pulled out and ensuring the stability of the catheter insertion. In this technical solution, by directly rotating and connecting the puncture head to the catheter and setting the connecting body structure, the catheter can be punctured without installing a puncture knife. After puncture, the catheter can be automatically opened without the need to remove the puncture head, simplifying the puncture process and shortening the operation time. In addition, the puncture head can play a limiting role after being inserted into the body, which also ensures the stability of the catheter insertion in the human body and improves the safety of the operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the puncture device provided by this utility model before it is inserted into the human body;

[0019] Figure 2 A schematic diagram of the structure of the puncture device provided by this utility model after it is inserted into the human body;

[0020] Figure 3 Another structural schematic diagram of the puncture device provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the puncture head in the puncture device provided by this utility model.

[0022] Explanation of icon numbers:

[0023] 10. Skin; 100. Catheter; 110. Channel; 120. Installation port; 130. Limiting groove; 140. Limiting port; 200. Connector; 210. Connecting part; 220. Limiting part; 230. Protrusion; 300. Puncture head; 400. Limiting body; 500. Limiting ring.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] To facilitate puncture and reduce waste of puncture knives, this technical solution proposes a puncture device, comprising:

[0029] The conduit 100 has an internal channel 110 and an insertion end. The insertion end is provided with an installation port 120 that communicates with the channel 110. The outer wall of the conduit 100 is provided with a limiting groove 130. The limiting groove 130 is located at the end of the installation port 120 away from the insertion end and communicates with the installation port 120.

[0030] The connector 200 includes a bent connecting part 210 and a limiting part 220, and one end of the connecting part 210 near the limiting part 220 is hinged to the mounting port 120.

[0031] The puncture head 300 is connected to the end of the connecting part 210 away from the limiting part 220. The puncture head 300 has a first state and a second state. In the first state, the puncture head 300 rotates to the end of the catheter 100 to close the channel 110. In the second state, the puncture head 300 rotates to one side of the catheter 100 and opens the channel 110, and the limiting part 220 is engaged in the limiting groove 130.

[0032] In this utility model, the insertion end of the catheter 100 is provided with an installation port 120. A limiting groove 130 communicating with the installation port 120 is provided on the side wall of the catheter 100. A connector 200 is provided at the installation port 120. The connecting portion 210 of the connector 200 is bent and connected to the limiting portion 220. One end of the connecting portion 210 near the limiting body 200 is hinged to the installation port 120. Furthermore, a puncture head 300 is provided at the end of the connecting portion 210 away from the limiting portion 220. The puncture head 300 can swing with the connecting part 210 and has a first state and a second state. In the first state, the puncture head 300 rotates to the end of the catheter 100 and closes the catheter 100. At this time, the limiting part 220 is set perpendicular to the catheter 100. In this state, the puncture head 300 can be inserted into the skin 10. During the puncture, the puncture head 300 and the connecting part 210 gradually pass through the skin 10 until the connection position of the connecting part 210 and the limiting part 220 contacts the skin 10, and then the insertion continues. Skin 10 will push the limiting part 220 to rotate closer to the limiting groove 130, and the puncture head 300 will swing away from the catheter 100 until the limiting part 220 is embedded in the limiting groove 130. The puncture head 300 will rotate to one side of the catheter 100 and open the channel 110. At this time, other medical instruments can directly pass through the channel 110 to perform surgery. This state is the second state. In this state, the puncture head 300 can form a limit with the skin 10 on one side of the body to restrict the catheter 100 from being pulled out and ensure the stability of the catheter 100 insertion. In this technical solution, by directly rotating and connecting the puncture head 300 to the catheter 100 and setting the connector 200, the catheter 100 can be punctured without the need for a puncture knife. After puncture, the catheter 100 can be automatically opened without the need to disassemble the puncture head 300, which simplifies the puncture process and helps to shorten the operation time. In addition, the puncture head 300 can play a limiting role after being inserted into the body, which also ensures the stability of the catheter 100 inserted into the human body and improves the safety of the operation.

[0033] like Figures 1 to 4In one embodiment of this utility model, the puncture device includes a catheter 100, which has a tubular structure and is hollow to form an axially extending channel 110. One end of the catheter 100 that pierces the human body is the insertion end, and the edge of the insertion end is recessed to form an installation port 120. A limiting groove 130 is provided at the end of the installation port 120 away from the insertion end. The limiting groove 130 is formed on the outer side wall of the catheter 100. The puncture device also includes a puncture head 300, one end of which is sharp and forms a structure similar to a puncture knife. The other end of the puncture head 300 matches the shape and size of the insertion end of the catheter 100 and can cover the insertion end. Additionally, a connector 200 is provided on the puncture head 300. The connector 200 includes an L-shaped connecting portion 210 and a limiting portion 220. The connecting portion 210 extends axially along the puncture head 300, and the limiting portion 220 extends radially along the puncture head 300. The connecting portion 210 is movably inserted into the mounting port 120, and one end of the connecting portion 210 away from the puncture head 300 is rotatably connected to the inner wall of the mounting port 120. The connecting portion 210 can drive the puncture head 300 to swing, thereby opening or closing the channel 110 of the insertion end. In this design, the puncture head 300 has a first state and a second state, such as... Figure 1 In the first state, the connecting part 210 rotates to be accommodated within the installation port 120, and the puncture head 300 is engaged with the insertion end. At this time, the user can perform a puncture operation, using the puncture head 300 to insert the catheter 100 into the body. When the puncture device penetrates to the point where the limiting part 220 contacts the skin 10, as it continues to penetrate, the skin 10 will abut against the limiting part 220, and the limiting part 220 will drive the connecting part 210 to swing until it reaches the target. Figure 2 In this state, the limiting part 220 is engaged in the limiting groove 130, and the puncture head 300 swings to one side of the catheter 100. At this time, the channel 110 on the catheter 100 opens, and the catheter 100 is installed in place. This is the second state. In this state, the instrument can normally enter and exit the channel 110. In addition, the limiting part 220 is clamped by the catheter 100 and the skin 10, and the puncture head 300 swings to one side of the catheter 100 and is fixed. Therefore, the catheter 100 cannot be pulled out of the body under the limiting of the puncture head 300, ensuring the stability of the catheter 100 insertion. In this solution, by rotating the puncture head 300 with the function of a puncture knife at the end of the catheter 100 and combining it with the L-shaped connector 200 structure, the function of puncture without a puncture knife is realized. The puncture knife structure is omitted, which helps to reduce costs. In addition, the catheter 100 can automatically open after being inserted into the body, which simplifies the puncture operation and helps to improve surgical efficiency and surgical safety. In another embodiment of this utility model, in order to reduce costs, the connector 200 and the piercing head 300 can be integrally formed, which simplifies the processing technology and reduces manufacturing costs.

[0034] like Figure 4In one embodiment of the present invention, protrusions 230 are provided on the two opposite side walls of the connecting part 210, and connecting holes are provided on the two opposite inner walls of the mounting port 120. The protrusions 230 are inserted into the connecting holes and rotate with the connecting holes. Both sides of the connecting part 210 are rotatably connected to the mounting port 120, which can improve the connection strength between the connecting part 210 and the mounting port 120.

[0035] In one embodiment of this invention, the channel 110 is offset from the axis of the catheter 100, and the offset direction is away from the limiting groove 130. This allows for a thicker wall of the mounting port 120, and correspondingly, the connecting portion 210 can also be made thicker, which is beneficial to improving the overall strength of the catheter 100 and the connecting portion 210. In another embodiment of this invention, the depth of the limiting groove 130 is less than the wall thickness of the catheter 100; that is, the limiting groove 130 does not penetrate into the internal channel 110. During puncture, the mounting port 120 can be completely submerged in the body. Since the limiting groove 130 does not penetrate the side wall of the catheter 100, it can ensure that the channel 110 is isolated from the external environment, preventing external contamination and improving the safety of the surgery.

[0036] like Figure 3 and Figure 4 In one embodiment of this utility model, the insertion end is provided with a limiting port 140, which is located on both sides of the channel 110, along with the installation port 120. A limiting body 400 is provided on the end of the puncture head 300 facing the catheter 100. In the first state, the limiting body 400 is inserted into the limiting port 140. Thus, during the puncture process of the puncture head 300, the inner wall of the limiting port 140 can provide support for the limiting body 400 and the puncture head 300, and the limiting port 140 can also restrict the position of the limiting body 400, preventing the puncture head 300 from rotating or swinging, ensuring the stability of the puncture head 300 during the puncture process, and improving the safety of the operation. In another embodiment of this utility model, the width of the limiting body 400 decreases in the direction away from the puncture head 300, and the limiting port 140 is adapted to the limiting body 400. In this way, the limiting body 400 can be more easily disengaged from the limiting port 140, which helps to ensure the smooth adjustment of the puncture head 300 to the second state.

[0037] In one embodiment of this utility model, the side of the limiting part 220 away from the catheter 100 is an arc surface. In the second state, the arc surface is flush with the outer peripheral surface of the catheter 100. In this way, it can be ensured that in the second state, the skin 10 can firmly clamp the limiting part 220 with the inner wall of the limiting groove 130, preventing the limiting part 220 from shaking and also preventing the puncture head 300 from shaking, which is conducive to ensuring the safety of the operation.

[0038] like Figure 1 and Figure 2In one embodiment of this utility model, the puncture device further includes a limiting ring 500, which is slidably sleeved on the catheter 100. In the second state, the limiting ring 500 slides to be directly opposite the limiting groove 130 to limit the puncture head 300. In order to make the position of the limiting ring 500 stable after adjustment, the limiting ring 500 can be clamped on the outer wall of the catheter 100 by an elastic snap ring. After the limiting ring 500 is slid to the position supported by the limiting groove 130, the limiting ring 500 can cooperate with the internal puncture head 300 to clamp the skin 10, restricting the axial movement of the catheter 100 and further ensuring the stability of the position of the catheter 100. In addition, the limiting ring 500 can prevent the limiting body 400 from rotating out of the limiting groove 130, ensuring the stability of the position of the puncture head 300 and the stability of the position of the catheter 100.

[0039] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A puncture device, characterized in that, include: The catheter has an internal channel and an insertion end. The insertion end has an installation port that communicates with the channel. The outer wall of the catheter has a limiting groove located at the end of the installation port away from the insertion end and communicating with the installation port. A connector includes a bent connecting part and a limiting part, wherein one end of the connecting part near the limiting part is hinged to the mounting port; A puncture head is connected to one end of the connecting portion away from the limiting portion. The puncture head has a first state and a second state. In the first state, the puncture head rotates to the end of the catheter to close the channel. In the second state, the puncture head rotates to one side of the catheter and opens the channel, and the limiting portion is engaged with the limiting groove.

2. The puncture device as described in claim 1, characterized in that, The two opposite sidewalls of the connecting part are provided with protrusions, and the two opposite inner walls of the mounting port are provided with connecting holes. The protrusions are inserted into the connecting holes and rotate with the connecting holes.

3. The puncture device as described in claim 1, characterized in that, The channel is offset from the axis of the conduit, and the direction of the offset is away from the limiting groove.

4. The puncture device as described in claim 1, characterized in that, The depth of the limiting groove is less than the wall thickness of the conduit.

5. The puncture device as described in claim 1, characterized in that, The insertion end is provided with a limiting port, which is located on both sides of the channel, and a limiting body is provided at the end of the puncture head facing the catheter. In the first state, the limiting body is inserted into the limiting port.

6. The puncture device as described in claim 5, characterized in that, The width of the limiting body decreases in the direction away from the puncture head, and the limiting port is adapted to the limiting body.

7. The puncture device as described in claim 1, characterized in that, The connector is integrally formed with the puncture head.

8. The puncture device as described in claim 1, characterized in that, The side of the limiting part away from the conduit is an arc surface, and in the second state, the arc surface is flush with the outer peripheral surface of the conduit.

9. The puncture device as described in claim 1, characterized in that, The puncture device also includes a limiting ring, which is slidably sleeved on the catheter. In the second state, the limiting ring slides to be directly opposite the limiting groove to limit the puncture head.

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