Veress needle clamping device

Abstract

The present invention discloses a Veress needle clamping device, wherein the Veress needle comprises a needle tip and a needle tube, wherein the Veress needle clamping device comprises an indicator; and a clamping assembly, wherein the clamping assembly comprises two clamping members rotatably connected to each other, wherein the clamping member comprises an operating portion and a clamping portion, wherein the operating portion is used to drive the clamping portion to clamp or release the needle tip, wherein the indicator member is slidably connected to an operating portion of the clamping member, wherein a scale mark is provided on the operating portion along the sliding path of the indicator member, wherein the scale mark is used to reflect the moving distance of the indicator member, wherein the needle tube can contact the indicator member, wherein the indicator member slides along the operating portion under the push of the needle tube, and wherein the indicator member cooperates with the scale mark to reflect the advancing distance of the needle tube. The technical solution of the present invention can control the puncture depth of the Veress needle to reduce accidental injuries during the operation of the Veress needle.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a Veress needle clamping device. Background Art

[0002] During laparoscopic surgery, a disposable pneumoperitoneum needle is required. The pneumoperitoneum needle uses a stainless steel tube as the puncture needle. The outer surface of the needle tube is smooth. During the puncture process, the operator's hand feel is used to determine the puncture process. During the puncture process, it is difficult to control the puncture depth, which can easily cause accidental injuries. According to literature records, in laparoscopic surgery, accidental injuries alone account for 74% of injuries caused by pneumoperitoneum needles. Therefore, avoiding unnecessary damage to patients caused by the use of pneumoperitoneum needles is an urgent problem to be solved. Summary of the invention

[0003] The main purpose of the present invention is to provide a Veress needle clamping device, which is intended to accurately control the puncture distance of the Veress needle.

[0004] To achieve the above-mentioned purpose, the Veress needle clamping device proposed in the present invention comprises an indicator; and

[0005] A clamping assembly, wherein the clamping assembly includes two clamping members rotatably connected to each other, the clamping members include an operating portion and a clamping portion, the operating portion is used to drive the clamping portion to clamp or release the needle tip, the indicating member is slidably connected to the operating portion of one of the clamping members, a scale mark is provided on the operating portion along the sliding path of the indicating member, the scale mark is used to reflect the moving distance of the indicating member, the needle tube can contact the indicating member, the indicating member slides along the operating portion under the push of the needle tube, and the indicating member cooperates with the scale mark to reflect the advancement distance of the needle tube.

[0006] Optionally, the indicator member includes a sliding portion and an abutment portion connected to the sliding portion, the abutment portion is used to contact the needle tube, the operating portion of the clamping member is provided with a mounting portion, and the sliding portion is slidably connected to the mounting portion of the clamping member.

[0007] Optionally, the abutting portion is provided with a slot for placing the needle tip.

[0008] Optionally, one of the sliding portion and the mounting portion is provided with a slide rail, and the other of the two is provided with a mounting opening, and the slide rail can be slidably embedded in the mounting opening.

[0009] Optionally, the cross-sectional shape of the slide rail is T-shaped, and the shape of the mounting opening is adapted to the cross-sectional shape of the slide rail.

[0010] Optionally, both of the clamping members are provided with the mounting portion.

[0011] Optionally, the two clamping members form a rotation connection between the operating portion and the clamping portion.

[0012] Optionally, the clamping parts of the two clamping members are respectively provided with through grooves whose openings are adapted to the outer contour of the needle tip, and the through grooves of the two clamping members cooperate to clamp and fix the needle tip.

[0013] Optionally, the end of the clamping portion away from the operating portion is a plane.

[0014] Optionally, a gripping portion is provided on a side of the operating portion that slides away from the indicating member, and the gripping portion is used to drive the operating portion to enable the clamping portion to clamp or release the needle tip.

[0015] The technical solution of the present invention adopts two clamping pieces, one end of the clamping piece has a clamping part for clamping and fixing the needle tip of the Veress needle, and the other end of the clamping piece has an operating part for facilitating user operation, and the operating part can drive the clamping piece and make the clamping part fix the needle tip of the Veress needle; an indicator is movably arranged on the operating part of the clamping piece, and a scale line is provided on the clamping piece to reflect the moving distance of the indicator, so that the distance moved by the needle tip of the Veress needle through the clamping piece can be quantified, so that the puncture distance when the user performs the puncture operation can be controlled to avoid accidental injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in 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 described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the Veress needle clamping device of the present invention when the Veress needle is clamped;

[0018] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the Veress needle clamping device when the Veress needle is not clamped;

[0019] Figure 3 for Figure 2 Schematic diagram of the exploded view of the Veress needle clamping device without the Veress needle clamped;

[0020] Figure 4 for Figure 2 A schematic diagram of the three-dimensional structure of the Veress needle clamping device when the Veress needle is not clamped, with some clamping parts removed to expose the matching installation structure;

[0021] Figure 5 for Figure 2A schematic diagram of the three-dimensional structure of the middle sliding member when the Veress needle clamping device does not clamp the Veress needle;

[0022] Description of Figure Numbers:

[0023] Label name Label name 5 Veress needle clamping device 315 Slide rails 1 Veress needle 316 Mounting port 11 Needle Tip 317 Through slot 12 Needle 318 flat 2 Indicator 32 Rotating joint 21 Sliding part 321 Grooves 22 Butt part 33 Operation segment 3 Clamping components 34 Connection terminal 31 Clamping parts 35 Shaft 311 Operation Department 36 Mounting holes 312 Clamping part 4 Control Department 313 Scale mark 314 Installation Department

[0024] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, in the present invention, descriptions such as "first", "second", etc. are only used 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 defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is 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] Reference Figure 1The present invention proposes a Veress needle clamping device 55, wherein the Veress needle 1 includes a needle tip 11 and a needle tube 12. In one embodiment of the present invention, the Veress needle clamping device 55 includes: an indicator 2; and a clamping assembly 3, wherein the clamping assembly 3 includes two clamping members 31 rotatably connected to each other, wherein the clamping member 31 includes an operating portion 311 and a clamping portion 312, wherein the operating portion 311 is used to drive the clamping portion 312 to clamp or release the needle tip 11, wherein the indicator 2 is slidably connected to an operating portion 311 of the clamping member 31, wherein a scale mark 313 is provided on the operating portion 311 along the sliding path of the indicator 2, wherein the scale mark 313 is used to reflect the moving distance of the indicator 2, wherein the needle tube 12 can contact the indicator 2, wherein the indicator 2 slides along the operating portion 311 under the push of the needle tube 12, and wherein the indicator 2 cooperates with the scale mark 313 to reflect the advancing distance of the needle tube 12.

[0029] The pneumoperitoneum needle 1 is a clinical medical device used for abdominal puncture, generally with a diameter of 2 mm and lengths of different specifications such as 80 mm, 120 mm, and 150 mm. The two clamps 31 can be in the shape of hand pliers for clamping and fixing the Veress needle 1. The operation process during use is: open the two clamps so that the clamp heads are opened, insert the Veress needle 1, place the other end of the Veress needle 1 on the sliding assembly, move the sliding member to the desired distance, that is, the distance moved by the sliding member along the clamp 31, such as the distance indicated by two or three scale marks 313, that is, the distance from the needle tip 11 of the Veress needle 1 to the clamp head, clamp the left clamp and the right clamp to fix the Veress needle 1, and then operate the hand pliers to perform the insertion operation, so that the insertion distance can be controlled to avoid accidental injury; of course, the clamp 31 can also be in other shapes, such as the clamp 31 can be tubular, that is, the two clamps 31 are tubular after the clamping combination, one end of the tubular assembly has a clamping portion 312, which can clamp the Veress needle 1, and the other end is enclosed in the tube with an indicator 2 on one side, and the two tubular connection methods The connection line can be on the side or on the bottom; the clamping member 31 can also be semi-tubular, that is, a single clamping member 31 is in a 1 / 4 tube shape, and the length of the operating portion 311 is greater than the length of the clamping portion 312. It can be understood that the clamping portion 312 acts as a clamping channel, and the distance that the pneumoperitoneum needle 1 extends out of the clamping portion 312 is reflected by the distance that the indicator 2 moves on the operating portion 311. The scale mark 313 can be made by engraving or coating or other methods. The minimum unit of the scale distance is MM, and the maximum moving distance is determined by the length specification of the adapted pneumoperitoneum needle 1. Therefore, it can be understood that as long as the clamping member 31 can be provided with a component for clamping, and there is an indicator 2 provided on the clamping member 31 that can reflect the moving distance, the distance of the inserted pneumoperitoneum needle 1 can be controlled to avoid accidental injury, which will not be described one by one here.

[0030] The technical solution of the present invention adopts two clamping members 31, one end of the clamping member 31 has a clamping portion 312 for clamping and fixing the needle tip 11 of the Veress needle 1, and the other end of the clamping member 31 has an operating portion 311 for user convenience. The operating portion 311 can drive the clamping member 31 and make the clamping portion 312 fix the needle tip 11 of the Veress needle 1; the indicator 2 is movably arranged on the operating portion 311 of the clamping member 31, and a scale mark 313 is provided on the clamping member to reflect the moving distance of the indicator 2, so that the distance moved by the needle tip 11 of the Veress needle 1 through the clamping member 31 can be quantified, so that the puncture distance during the puncture operation of the user can be controlled to avoid accidental injury.

[0031] Further, in order to facilitate the placement of the Veress needle 1 and enable the indicator 2 to more accurately reflect the extension distance of the Veress needle 1, see Figure 1 and Figure 2 The indicating member 2 includes a sliding portion 21 and an abutting portion 22 connected to the sliding portion 21, the abutting portion 22 is used to contact the needle tube 12, the operating portion 311 of the clamping member 31 is provided with a mounting portion 314, and the sliding portion 21 is slidably connected to the mounting portion 314 of the clamping member 31. When one end of the Veress needle 1 is located at the clamping portion 312, the other end of the Veress needle 1 is in a suspended state. Although the sliding portion 21 can be moved to the distance to align the connection between the Veress needle 1 tip and the needle tube 12 at the scale mark 313, the length of the Veress needle 1 makes it possible for the suspended needle tip 11 and the needle tube 12 to have no stress points and risk of bending and deformation. Therefore, the abutment portion 22 is provided to facilitate the placement of the Veress needle 1 and avoid deformation of the stress-bearing parts. On the other hand, it can also facilitate the movement distance of the Veress needle 1 in the alignment time, that is, the indicator 2 can be moved to the distance of the scale mark 313 first. In this embodiment, one end of the sliding portion 21 corresponds to the scale mark 313, and the difference between the sliding portion 21 and the scale mark 313 before and after the movement is the movement distance. Without loss of generality, if the rear end of the clamp is 0 mm, the corresponding end of the sliding portion moves 3 grids, and the movement distance at this time is 30 mm. Then place the Veress needle 1 on the clamping portion 312 and the abutment portion 22. When the needle tube 12 of the Veress needle 1 contacts the abutment portion 22, clamp it. Alternatively, place the other end of the Veress needle 1 on the clamping portion 312 and push the Veress needle 1 so that the needle tube 12 partially contacts the abutment portion 22, drive the indicator 2 to the required moving scale distance, such as 30 mm, and then clamp the clamping portion 312. The operation is simple and quick.

[0032] Further, in order to make the contact between the abutting portion 22 and the pneumoperitoneum needle 1 more stable, a card slot (not marked in the figure) is provided on the abutting portion 22, and the card slot is used to place the needle tip 11. The card slot can be a notch, and the connection line between the notch and the clamping portion of the clamping portion 312 is a straight line. In this way, when the clamping portion 312 clamps one end of the needle tip 11 of the pneumoperitoneum needle 1, the other end of the needle tip 11 can be located in the notch and the two are horizontally collinear, preventing the other end of the clamped pneumoperitoneum needle 1 from shaking. Moreover, a reinforcing rib can be provided between the sliding portion 21 and the abutting portion 22 to strengthen the strength of the connection portion and prevent fracture.

[0033] Further, to ensure the stability of the sliding of the indicator 2 and avoid the situation of disengaging from the clamping member 31, see Figure 3 and Figure 4 , one of the sliding portion 21 and the mounting portion 314 is provided with a slide rail 315, and the other of the two is provided with a mounting opening 316, and the slide rail 315 is slidably embedded in the mounting opening 316. In one case, the slide rail 315 can be composed of a pulley and two tracks. In another case, the slide rail 315 can also be a ball slide rail. The ball slide rail can ensure smooth pushing and pulling and has a large bearing capacity. Such a slide rail can have a function of buffered closing or pressing and rebounding to open. In still another case, the slide rail 315 can also be a gear slide rail. By using a gear structure, the slide rail is very smooth and synchronous. The slide rail 315 is snap-fitted into the mounting opening 316 to avoid detachment, and the slide rail 315 can also move relative to the mounting opening 316 to facilitate distance adjustment. It can be understood that the mounting portion can be in the shape of the slide rail 315 as Figure 4 or in the shape of the mounting opening 316 as Figure 4 to achieve the above effects.

[0034] Specifically, for the convenience of firm and stable assembly, see Figure 4 and Figure 5 , the cross-sectional shape of the slide rail 315 is T-shaped, and the shape of the mounting opening 316 is adapted to the cross-sectional shape of the slide rail 315. It can be understood that making the slide rail 315 in the shape of a T-shaped groove can prevent the mounting opening 316 from slipping out. The shape of the slide rail 315 can be understood as the shape of a train track, that is, the width is the same up and down, and slightly narrower in the middle, like the Chinese character "工" shape. Such a track is both stable and reliable. It can be understood that the slide rail 315 and the mounting opening 316 with such a structure also have the effects of stability and not being easily detached.

[0035] Further, for the convenience of the user's usage habit and easy replacement, see Figures 1 to 5The two clamping members 31 are both provided with the mounting portion 314. The mounting portions 314 are provided on both sides of the clamping member 31. On the one hand, it can be used more conveniently in accordance with the working habits of the operator. On the other hand, when the mounting portion 314 on one side is damaged, it can be replaced with the other side, which is highly practical.

[0036] Further, in order to facilitate the clamping of the Veress needle 1, see Figure 3 , a rotational connection is formed between the operating portion 311 and the clamping portion 312 of the two clamping members 31. The direction parallel to the operating portion 311 is defined as the first direction, and the direction perpendicular to the first direction is defined as the second direction. The clamping member has an operating section 33 arranged in the first direction and a connecting section 34 connected to the operating section 33. The connecting section 34 is bent, that is, the middle part of the connecting section 34 is parallel to the second direction and perpendicular to the first direction, and the two ends of the connecting section 34 are parallel to the first direction and perpendicular to the second direction. The other end of the connecting section 34 is connected to the clamping portion. The two clamping members 31 are rotationally connected at the connecting section 34 by riveting the rotating shaft 35, that is, by a cross setting like a clamp or scissors style, and a groove 321 is formed between the connecting section 34 and the operating portion, that is, the height of the clamping portion and the operating portion is greater than the connecting section 34. That is, the connecting section 34 is recessed between the operating part and the clamping part, one connecting section 34 is provided with a rotating shaft 35 and the other connecting section 34 is correspondingly provided with a mounting hole 36, and the two connecting sections 34 are mutually embedded through the grooves 321, so that the cooperation of the two connecting parts is more stable and the clamping effect is better. In addition, the grooves 321 can also play a limiting role to avoid the clamping part from opening too wide, which makes it difficult to grasp the operating part and affects the operation. The thus formed pneumoperitoneum needle clamping device is convenient for applying force to clamp the pneumoperitoneum needle 1 and release the pneumoperitoneum needle 1 on the one hand, and on the other hand, the operating section 33 and the clamping section form a lever at the connection, and the length of the operating section 33 is greater than the length of the connecting section 34, so that only a small force is required to clamp and fix the pneumoperitoneum needle 1.

[0037] Furthermore, in order to achieve a better clamping effect and not affect the Veress needle 1, as shown in the figure, the clamping parts 312 of the two clamping members 31 are respectively provided with through grooves 317 whose openings are adapted to the outer contour of the needle tip 11, and the through grooves 317 of the two clamping members 31 cooperate to clamp and fix the needle tip 11. The needle tip 11 of the Veress needle 1 is cylindrical, and the clamping part 312 is adapted to the through groove 317 of the outer contour of the needle tip 11, so that the Veress needle 1 can move along the channel of the through hole formed by the through groove 317 without applying external force, and after moving to the required distance, it is gripped and clamped. Because of the coordination of the through hole and the shape of the Veress needle 1, the clamping member 31 applies force evenly, avoiding deformation of the Veress needle 1 during clamping.

[0038] Specifically, for easy observation during operation, see Figure 3 and Figure 4The end of the clamping part 312 away from the operating part 311 is a plane 318. The end surfaces of the first clamping part 312 and the second clamping part 312 are set as planes 318. The plane 318 at the bottom ensures that the clamping member 31 has a larger contact area after abutting against the patient's skin, and is also convenient for the operator to observe.

[0039] Further, in order to facilitate the operation of the clamping member 31, see Figure 1 , Figure 2 , Figure 3 , Figure 4 The operating portion 311 is provided with a gripping portion 4 on the side away from the indicator 2, and the gripping portion 4 is used to drive the operating portion 311 so that the clamping portion 312 clamps or releases the needle tip 11. The gripping portion can be in various styles, such as a hammer, a rod with a protruding anti-slip, a ring, etc. In this embodiment, the clamping member 31 is in a ring shape, that is, a scissor grip ring shape. On the one hand, the gripping portion 4 is convenient for driving the clamping member 31, and on the other hand, it is also convenient for the operator to hold and operate.

[0040] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A Veress needle clamping device, wherein the Veress needle comprises a needle tip and a needle tube, characterized in that: The Veress needle clamping device comprises: Instructions; and A clamping assembly, wherein the clamping assembly comprises two clamping members rotatably connected to each other, the clamping member comprises an operating portion and a clamping portion, the operating portion is used to drive the clamping portion to clamp or release the needle tip, the indicator member is slidably connected to the operating portion of one of the clamping members, a scale mark is provided on the operating portion along the sliding path of the indicator member, the scale mark is used to reflect the moving distance of the indicator member, the needle tube can contact the indicator member, the indicator member slides along the operating portion under the push of the needle tube, and the indicator member cooperates with the scale mark to reflect the advancement distance of the needle tube; The two clamping members form a rotation connection between the operating portion and the clamping portion; A gripping portion is provided on the side of the operating portion that is away from the slide of the indicating member, and the gripping portion is used to drive the operating portion to enable the clamping portion to clamp or release the needle tip.

2. The Veress needle clamping device according to claim 1, characterized in that: The indicating member comprises a sliding portion and an abutting portion connected to the sliding portion, wherein the abutting portion is used to contact the needle tube, and the operating portion of the clamping member is provided with a mounting portion, and the sliding portion is slidably connected to the mounting portion of the clamping member.

3. The Veress needle clamping device according to claim 2, characterized in that: The abutting portion is provided with a slot, and the slot is used for placing the needle tip.

4. The Veress needle clamping device according to claim 2, characterized in that: One of the sliding part and the mounting part is provided with a slide rail, and the other of the two is provided with a mounting opening, and the slide rail can be slidably embedded in the mounting opening.

5. The Veress needle clamping device according to claim 4, characterized in that: The cross-sectional shape of the slide rail is T-shaped, and the shape of the mounting opening is adapted to the cross-sectional shape of the slide rail.

6. The Veress needle clamping device according to claim 5, characterized in that: The two clamping members are both provided with the mounting portion.

7. The Veress needle clamping device according to claim 1, characterized in that: The clamping parts of the two clamping members are respectively provided with through grooves whose openings are adapted to the outer contour of the needle tip, and the through grooves of the two clamping members cooperate to clamp and fix the needle tip.

8. The Veress needle clamping device according to claim 7, characterized in that: One end of the clamping portion away from the operating portion is a plane.

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