Poking card limiting device

Abstract

The utility model discloses a trocar limiting device, and relates to the technical field of medical instruments. In order to solve the problem that an existing trocar fixer is troublesome to operate, the trocar limiting device is mainly structurally characterized by comprising a first card body and a second card body, the first clamping body and the second clamping body are spliced and have an opening and closing function and a locking function; after splicing, a hole through which the trocar penetrates is formed in the middle. Before an endoscopic surgery, the trocar limiting device is opened, the trocar is sleeved with the trocar through the hole in the middle of the trocar limiting device, and after the trocar limiting device is locked at the position, needing the puncture depth, of the trocar, puncture is conducted through the trocar; when the puncture depth of the trocar needs to be increased after puncture, the locking state of the trocar limiting device is released firstly, the trocar limiting device is moved to the position with the needed puncture depth and then locked, and then the puncture depth of the trocar is adjusted; in the operation, the clamping position of the trocar can be conveniently and flexibly adjusted firstly, then the puncture depth of the trocar is adjusted, and the puncture accuracy and safety are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a card limiting device. Background Technology

[0002] During laparoscopic procedures, a trocar needs to be placed. The trocar is a puncture device that connects the body cavity to the outside world and serves as a channel for laparoscopic surgical instruments to enter. The current method of placing the trocar is puncture. Before puncture, the inner core of the trocar is inserted into the cannula. Then, the puncture point is punctured, and the trocar and inner core are inserted into the body cavity. The inner core is then removed, and the appropriate medical instruments are then used to perform the surgical procedure within the trocar.

[0003] During laparoscopic surgery, the depth of the trocar insertion is sometimes limited. It cannot be too deep or too shallow when entering the abdominal cavity; otherwise, it can easily damage the surrounding tissues or organs, affecting the surgery and threatening the patient's life. While existing trocar fixation devices can adjust the trocar depth, their operation is cumbersome, causing numerous inconveniences to the smooth progress of the surgery.

[0004] Patent publication CN206434361U discloses a trocar holder fixator, comprising: a retaining ring, which is sleeved on the outside of the trocar to increase the local outer diameter of the trocar; and a fixing device, which includes a first fixing layer fixed to the skin and a second fixing layer fixed to the first fixing layer; the second fixing layer and the retaining ring are movably connected via a connector. This invention, through the movable connection of the retaining ring and the fixing device, can effectively control the movement of the trocar, ensuring the smooth progress of the surgery; by removing the second fixing layer from the first fixing layer, adjusting the position of the retaining ring on the trocar, and then fixing the second fixing layer back to the first fixing layer, the depth adjustment of the trocar is completed, making the operation simple and convenient and improving surgical efficiency.

[0005] The depth adjustment operation of this utility model is cumbersome, and directly adjusting the depth with a stamp card carries a high risk. Utility Model Content

[0006] To address the above problems, the technical approach adopted by this utility model is as follows:

[0007] Design a puncture card limiting device with opening, closing, and locking functions. The position of the limiting device can be flexibly adjusted on the puncture card to achieve relatively precise control of the puncture depth. After opening the device, it is placed on the puncture card and locked at the required puncture distance. When the depth needs to be adjusted, the locking is released, the card is moved the required distance, locked again, and then the puncture card is moved.

[0008] The specific plan is as follows:

[0009] A puncture card limiting device includes a first card body and a second card body; the first card body and the second card body are assembled and have opening and closing functions and locking functions; after assembly, a hole for the puncture card to pass through is formed in the middle to control the puncture depth of the puncture card.

[0010] A preferred embodiment is that the first card body includes a first body, a concave hinge section, and a toothed section; a first arc-shaped groove is provided on the side of the first body near the second card body; the concave hinge section is provided on one side of the first arc-shaped groove, and the toothed section is provided on the other side.

[0011] Another preferred embodiment is that the second card body includes a second body, a convex hinge section and a card slot section; a second arc-shaped groove is provided on the side of the second body near the first card body; the convex hinge section is provided on one side of the second arc-shaped groove and the card slot section is provided on the other side.

[0012] To achieve the above solution, the first arc-shaped groove and the second arc-shaped groove are further joined together to form a hole through which the punch card passes.

[0013] Preferably, the concave hinge segment and the convex hinge segment are connected by a hinge member to achieve opening and closing.

[0014] Optionally, the locking teeth section cooperates with the locking groove section to achieve locking.

[0015] By adopting the above technical solution, this utility model has the following technical effects:

[0016] A puncture card limiting device includes a first card body and a second card body; the first card body and the second card body are assembled to have an opening and closing function and a locking function; after assembly, a hole for the puncture card to pass through is formed in the middle to control the depth of puncture card penetration.

[0017] Before performing laparoscopic surgery, the puncture card limiting device is opened, and the puncture card is fitted through the central hole. After locking the puncture card limiting device at the required puncture depth, puncture is performed through the puncture card. If it is necessary to increase the puncture depth after puncture, first release the locking state of the puncture card limiting device, move it to the required puncture depth position, lock it, and then adjust the puncture depth of the puncture card. This utility model of puncture card limiting device can limit the puncture depth of the puncture card, and during the operation, its locking position can be easily and flexibly adjusted first, and then the puncture depth of the puncture card can be adjusted, ensuring the accuracy and safety of puncture, ensuring the progress of the operation, and avoiding punctures that are too deep or too shallow, which may damage the patient's surrounding tissues or organs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below.

[0019] Figure 1This is a schematic diagram of the structure of a card-stopping device provided in an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the opening of a card-stopping device provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram illustrating the use of a card-stopping device in conjunction with a card, as provided in an embodiment of this application.

[0022] Figure 4 This is an exploded schematic diagram of a card-stopping device provided in an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the structure of the first card body provided in the embodiments of this application;

[0024] Figure 6 This is a schematic diagram of the structure of the second card body provided in the embodiments of this application;

[0025] Icons: First card body 1; First arc groove 1A; First body 11; Concave hinge section 12; Groove 12A; Tooth section 13; Second card body 2; Second arc groove 2A; Second body 21; Convex hinge section 22; Slot section 23; Hinge 3; Stamp 4. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the appendices in the embodiments of this application will be described below. Figure 1-6 The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” should be interpreted broadly.

[0030] Example

[0031] During laparoscopic procedures, a trocar needs to be placed. The trocar is a puncture device that connects the body cavity to the outside world and serves as a channel for laparoscopic surgical instruments to enter. The current method of placing the trocar is puncture. Before puncture, the inner core of the trocar is inserted into the cannula. Then, the puncture point is punctured, and the trocar and inner core are inserted into the body cavity. The inner core is then removed, and the appropriate medical instruments are then used to perform the surgical procedure within the trocar.

[0032] The inventors discovered that during laparoscopic surgery, the depth of the trocar insertion is sometimes limited; it cannot be too deep or too shallow into the abdominal cavity, otherwise it can easily damage the patient's surrounding tissues or organs, affecting the surgery and threatening the patient's life. While existing trocar fixators can adjust the trocar depth, their operation is cumbersome, causing numerous inconveniences to the smooth progress of the surgery. Therefore, this application provides a trocar limiting device that can be flexibly adjusted and control the trocar insertion depth.

[0033] In the embodiments of this application, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 This is a schematic diagram of the structure of a card-stopping device provided in an embodiment of this application; Figure 2 This is a schematic diagram of the opening of a card-stopping device provided in an embodiment of this application; Figure 3 This is a schematic diagram illustrating the use of a card-stopping device in conjunction with a card, as provided in an embodiment of this application. Figure 4 This is an exploded view of a puncture card limiting device provided in an embodiment of this application. The puncture card limiting device includes a first card body 1 and a second card body 2; the first card body 1 and the second card body 2 are joined together, having opening and closing functions and locking functions; after joining, a hole for the puncture card 4 to pass through is formed in the middle, used to control the depth of puncture card penetration.

[0034] Before performing laparoscopic surgery, the puncture card limiting device is opened, and the puncture card is fitted through the central hole. After locking the puncture card limiting device at the required puncture depth, puncture is performed through the puncture card. If it is necessary to increase the puncture depth after puncture, first release the locking state of the puncture card limiting device, move it to the required puncture depth position, lock it, and then adjust the puncture depth. This utility model of puncture card limiting device can limit the puncture depth of the puncture card, and during the operation, its locking position can be easily and flexibly adjusted first, and then the puncture depth of the puncture card can be adjusted, ensuring the accuracy and safety of puncture, ensuring the progress of the operation, and avoiding punctures that are too deep or too shallow, which may damage the patient's surrounding tissues or organs.

[0035] In the embodiments of this application, please refer to Figure 5 , Figure 5This is a schematic diagram of the structure of the first card body provided in the embodiment of this application. The first card body 1 is integrally formed and includes a first body 11, a concave hinge section 12 and a tooth section 13; the first body 11 has a first arc-shaped groove 1A on one side near the second card body 2; the concave hinge section 12 is provided on one side of the first arc-shaped groove 1A and the tooth section 13 is provided on the other side.

[0036] The first body 11 is rectangular in shape, and a semi-circular first arc groove 1A is formed along the thickness direction on the side that fits with the second card body 2. The radius of the first arc groove 1A matches the radius of the stamp card.

[0037] The corner where the first body 11 and the second card body 2 fit together is a concave hinge section 12. The concave hinge section 12 is a groove 12A opened along the width direction within the thickness range of the first body 11. The left side of the groove 12A extends to the edge of the first body 11, and the right side extends to the edge of the first arc groove 1A. In order to avoid motion interference, the groove 12A is rounded on the side near the second card body 2. A circular through groove is opened in the middle of the groove 12A along the thickness direction of the first body 11.

[0038] The corner of the first body 11 that is in contact with the second card body 2 and away from the concave hinge section 12 is the tooth section 13. The tooth section 13 protrudes from the side of the first body 11 that is close to the second card body 2. The tooth section 13 is a right trapezoid with an arc waist and several teeth are provided on the arc waist.

[0039] In the embodiments of this application, please refer to Figure 6 , Figure 6 This is a schematic diagram of the structure of the second card body provided in the embodiment of this application. The second card body 2 is integrally formed and includes a second body 21, a convex hinge section 22 and a card slot section 23; a second arc-shaped groove 2A is provided on the side of the second body 21 near the first card body 1; a convex hinge section 22 is provided on one side of the second arc-shaped groove 2A and a card slot section 23 is provided on the other side.

[0040] The second body 21 is rectangular in shape, and a semi-circular second arc groove 2A is formed along the thickness direction on the side that fits against the first card body 1. The radius of the second arc groove 2A matches the radius of the stamp card.

[0041] To achieve the above solution, the first arc-shaped groove 1A and the second arc-shaped groove 2A are joined together to form a hole through which the stamp card passes.

[0042] The second body 21 and the concave hinge section 12 are attached to a corner of a convex hinge section 22. The convex hinge section 22 protrudes from the side of the second body 21 near the first card body 1. Its thickness, length, and width match the groove 12A of the concave hinge section 12. The convex hinge section 22 is inserted into the concave hinge section 12. To avoid motion interference, the convex hinge section 22 is rounded on the side near the second card body 2. A circular through groove is provided in the middle of the convex hinge section 22 along the thickness direction of the second body 21. The size and position of the circular through groove match the circular through groove of the concave hinge section 12.

[0043] It should be noted that the concave hinge segment 12 and the convex hinge segment 22 are engaged by the hinge member 3 to achieve opening and closing. The hinge member 3 is I-shaped, which is a common prior art and can be implemented by those skilled in the art, so it will not be described in detail here. The shaft in the middle of the hinge member 3 passes through the circular slots of the convex hinge segment 22 and the concave hinge segment 12, so that it can open and close without coming off.

[0044] The second body 21 and the toothed section 13 are attached to one corner of the groove section 23. The groove section 23 is a right trapezoidal groove with an arc waist opened in the second body 21. Several grooves that cooperate with the toothed section are opened on the arc waist. The toothed section 13 and the groove section 23 cooperate to achieve locking.

[0045] When locking is required, gradually press down the tooth section 13 along the slot section 23. Release the pressure when the hole and the embossed card are in close contact, and the tooth and slot will lock together. When unlocking is required, push the tooth section 13 slightly forward or backward to disengage it from the slot section 23, and the locking will be released.

[0046] Application Cases

[0047] Before performing laparoscopic surgery, the first card body 1 is rotated open via the hinge 3 and fitted onto the puncture card through the hole in the middle of the puncture card limiting device. The card tooth segment 13 is pressed down at the required puncture depth to lock the puncture card limiting device, and then the patient's skin is punctured through the puncture card. If it is necessary to increase the puncture depth of the puncture card during the operation, the card tooth segment 13 is first pushed forward or backward to release the locking state of the puncture card limiting device. The puncture card limiting device is then moved to the required puncture depth position and locked, and then the puncture depth of the puncture card is adjusted.

[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A card-stopping device, characterized in that, Includes a first card body (1) and a second card body (2); The first card body (1) and the second card body (2) are joined together, and have opening and closing functions and locking functions; After being assembled, a hole is formed in the middle for the puncture card to pass through, which is used to control the depth of the puncture card.

2. The card stop of claim 1, wherein: The first card body (1) includes a first body (11), a concave hinge section (12), and a card tooth section (13). The first body (11) has a first arc-shaped groove (1A) on the side near the second card body (2); The first arc-shaped groove (1A) has a concave hinge section (12) on one side and a toothed section (13) on the other side.

3. A card stop as claimed in claim 2, wherein the card stop is formed from a single piece of material. The second card body (2) includes a second body (21), a convex hinge section (22), and a card slot section (23); The second body (21) has a second arc-shaped groove (2A) on the side near the first card body (1); The second arc-shaped groove (2A) has the convex hinge section (22) on one side and the slot section (23) on the other side.

4. The apparatus of claim 3, wherein the at least one protrusion is configured to be received in the at least one slot. The first arc-shaped groove (1A) and the second arc-shaped groove (2A) are joined together to form a hole through which the punch card passes.

5. The apparatus of claim 3 wherein the card stop is formed of a material selected from the group consisting of: plastic, metal, and combinations thereof. The concave hinge segment (12) and the convex hinge segment (22) cooperate through the hinge member (3) to realize opening and closing.

6. The apparatus of claim 3 wherein: The locking teeth (13) and the locking groove (23) work together to achieve locking.

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