CN221083756U - Clamping assembly for a puncture needle - Google Patents

Abstract

The present utility model provides a clamping assembly for a puncture needle, comprising: the device comprises a shell, a second clamping part and a driving piece, wherein the shell is provided with a first clamping part which is connected with the shell in a sliding manner. The driving piece rotates to be connected in the casing, and the driving piece rotates to the first position, and the second clamping part is located the clamping position, and the driving piece rotates to the second position, and the driving piece separates with the second clamping part, in the clamping position, first clamping part and second clamping part centre gripping pjncture needle.

Description

Clamping assembly for a puncture needle

Technical Field

The utility model relates to the technical field of clamps, in particular to a clamping assembly for a puncture needle.

Background

Puncture needle treatment is a common treatment mode, and the puncture needle is difficult to fix by using a clamp due to the smooth surface of the puncture needle, so that inconvenience is brought to the use process of the puncture needle.

Disclosure of utility model

The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.

In view of this, the present utility model proposes, in a first aspect, a clamping assembly for a puncture needle comprising: the shell is provided with a first clamping part; the second clamping part is connected with the shell in a sliding way; the driving piece is rotationally connected to the shell, when the driving piece rotates to the first position, the second clamping part is positioned at the clamping position, and when the driving piece rotates to the second position, the driving piece is separated from the second clamping part; wherein, in the clamping position, the first clamping part and the second clamping part clamp the puncture needle.

When the puncture needle is used, the puncture needle is required to be prevented from moving relative to the clamping assembly, namely, the puncture needle is required to be stably clamped by the first clamping part and the second clamping part, so that the puncture needle can be stably used.

Specifically, the driving piece is installed on the casing, and the driving piece can rotate relative to the casing, and the driving piece is rotated the in-process of first position from the second position, and the driving piece promotes second clamping part, and when the driving piece rotated to first position, second clamping part was promoted to the clamping position, and second clamping part and first clamping part centre gripping pjncture needle were difficult for relative casing drunkenness this moment. The driving piece is from first position to second position pivoted in-process, and the driving piece separates with second clamping part gradually, and when the driving piece rotated to the second position, the driving piece dodges second clamping part, is the state of pine takes off between first clamping part and the second clamping part, can dismantle for the pjncture needle this moment.

The driving piece is connected with the shell in a rotating mode, the rotating center position of the driving piece on the shell cannot be changed, when the driving piece rotates to the first position, the driving piece can stably push the second clamping portion tightly at the clamping position, the first clamping portion and the second clamping portion are not easy to loose from each other, the first clamping portion and the second clamping portion can stably clamp the puncture needle, the puncture needle is prevented from shaking, and convenience is brought to use of the puncture needle. Moreover, the puncture needle can be fixed in a mode of rotating the driving piece, and the process of fixing the puncture needle is more convenient, so that the fixing difficulty of the puncture needle is reduced.

In addition, the clamping assembly for the puncture needle in the technical scheme provided by the utility model can also have the following additional technical characteristics:

In some technical schemes, optionally, the driving piece is provided with an avoidance part and a pushing part, the maximum distance between the axis of the driving piece and the outer edge of the avoidance part is L1, and the maximum distance between the axis and the outer edge of the pushing part is L2, wherein L1 is less than L2; the pushing part is abutted against the second clamping part at the first position, and the pushing part is separated from the second clamping part at the second position.

The avoidance part on the driving piece is used for avoiding the second clamping part, and the pushing part on the driving piece is used for pushing the second clamping part.

Specifically, the maximum distance between the avoidance part and the axis of the driving piece is L1, the maximum distance between the pushing part and the axis of the driving piece is L2, and because the distance between the pushing part and the axis is larger, when the pushing part rotates to one side of the second clamping part, the pushing part can push the second clamping part, so that the second clamping part moves towards the first clamping part, and the second clamping part can clamp the puncture needle with the first clamping part. When the puncture needle needs to be disassembled, the driving piece can be rotated, because the distance between the avoiding part and the axis is smaller, when the avoiding part rotates to one side of the second clamping part, the avoiding part cannot be in contact with the second clamping part, at the moment, the driving piece and the second clamping part are in a separation state, the driving piece does not push the second clamping part any more, and the second clamping part and the first clamping part are in a loose state, so that the puncture needle can be disassembled.

Through setting the surface of driving piece to the dysmorphism, can rotate to different positions through the driving piece, fix and dismantle the pjncture needle, can reduce the use degree of difficulty to clamping assembly.

In some embodiments, optionally, the outer surface of the pushing portion is curved; and/or the outer surface of the relief portion is planar.

When the pushing part rotates to one side of the second clamping part, the outer surface of the pushing part is contacted with the second clamping part, and the pushing part gradually pushes the second clamping part along with the rotation of the pushing part, so that the second clamping part and the first clamping part clamp the puncture needle.

The outer surface of the pushing part is set to be a curved surface, the pushing part can rotate flatly and stably relative to the second clamping part, and the stability of the pushing part when pushing the second clamping part is improved.

In one possible application, the distance between the curved surface and the axis increases and then decreases, and the pushing portion can gradually push the second clamping portion toward the first clamping portion as the pushing portion rotates relative to the second clamping portion.

The surface of dodging the portion sets up to the plane, and when dodging the portion and rotate to one side of second clamping part, the plane can not promote second clamping part, can dismantle the pjncture needle this moment.

Of course, in other embodiments, the outer surface of the relief portion may be configured as an inward concave surface.

In some embodiments, optionally, the driving member is provided with a locking portion, where in the first position, the locking portion abuts against the second clamping portion, so that the locking portion limits the driving member to rotate relative to the housing, and in the second position, the locking portion is separated from the second clamping portion.

When the driving member rotates to the first position, the pushing portion pushes the second clamping portion to the clamping position, and in order to ensure that the driving member is stably located at the first position, the driving member needs to be locked at the first position by contacting the locking portion with the second clamping portion.

Specifically, when the driving piece rotates to the first position, the locking part abuts against the second clamping part, at the moment, the locking part is propped against the second clamping part, and under the limitation of the locking part, the driving piece is difficult to continue rotating, so that the driving piece is limited at the first position, the driving piece is ensured to be capable of stably limiting the second clamping part at the clamping position, and the clamping stability of the puncture needle is improved.

In some embodiments, optionally, an inclined surface is disposed at an end of the locking portion facing away from the axis of the driving member, and a distance between the inclined surface and the axis increases or decreases along a rotation direction of the driving member.

The end face of the end of the locking portion facing away from the axis is an inclined face, and illustratively, the distance between the first side of the inclined face and the axis is larger, and the distance between the second side of the inclined face and the axis is smaller. When the puncture needle is required to be installed, the driving piece is rotated, the second side of the inclined surface is contacted with the second clamping part, the locking part starts to block the rotation of the driving piece, the driving force of the driving piece is increased to continue rotating the driving piece, the locking part gradually presses the surface of the second clamping part along with the further rotation of the driving piece, and at the moment, the locking part limits the rotation of the driving piece and limits the driving piece at the first position. Through setting up the terminal surface of locking piece as the inclined plane, can be with the driving piece more rotate tighter, conveniently realize fixed to the driving piece. Moreover, since the end surface of the locking portion is an inclined surface, it is also convenient to unlock the driving element.

In some embodiments, optionally, the second clamping portion includes: the clamping piece is used for clamping the puncture needle with the first clamping part, and the pushing part is propped against the clamping piece at the clamping position; the sliding piece is connected with the clamping piece, a set included angle is arranged between the clamping piece and the sliding piece, and the locking part abuts against the sliding piece in the clamping position.

Be provided with the contained angle between holder and the slider, for example, be right angle between holder and the slider, when needs to fix the pjncture needle, pushing part promotes the holder for holder and first clamping part carry out the centre gripping to the pjncture needle. During rotation of the driving member in the first direction, the locking portion rotates to a position contacting the sliding member, and when the locking portion is pressed against the surface of the sliding member, the driving member is difficult to continue to rotate in the first direction, so that the driving member is limited to the first position. When the puncture needle needs to be disassembled, the puncture needle is rotated along the second direction, the locking part is separated from the sliding part, and the pushing part is separated from the clamping part, so that the clamping part and the first clamping part are in a loose state, and the puncture needle can be pulled out at the moment.

In some embodiments, optionally, the second clamping portion further includes: the pushing piece is connected with the clamping piece, a through hole is formed in the shell, and the pushing piece penetrates through the through hole in the clamping position.

When the puncture needle on the clamping assembly needs to be disassembled, the driving piece is rotated to the second position, the driving piece does not push the second clamping part any more, and the first clamping part and the second clamping part are in a loose state at the moment, but the process of pulling out the puncture needle still can be blocked due to the fact that friction exists between the puncture needle and the first clamping part and/or the second clamping part, and therefore the second clamping part needs to be moved in a direction away from the first clamping part so as to be convenient for disassembling the puncture needle.

The clamping part is provided with a pushing part, the shell is provided with a through hole, the pushing part faces the through hole, when the driving part pushes the second clamping part, the pushing part moves towards the through hole, when the second clamping part moves to the clamping position, the pushing part passes through the through hole, the through hole is used for avoiding the pushing part, and at the moment, part of the pushing part passes through the through hole and then protrudes out of the surface of the shell.

When the puncture needle needs to be disassembled, the driving piece is rotated to the second position, the driving piece does not push the second clamping part any more, and a user can push the pushing piece, so that the second clamping part moves in the direction away from the first clamping part, and the gap between the second clamping part and the first clamping part is increased, so that the puncture needle is disassembled conveniently.

In some embodiments, optionally, the driving member includes: a rotating part which is rotationally connected with the shell; and the handle part is connected with the rotating part and extends in a direction deviating from the axis of the driving piece.

The rotation part is installed on the shell and is rotationally connected with the shell, the handle part is arranged on the rotation part, and a user can hold the handle part when rotating the driving piece, so that the driving piece is conveniently forced, and the driving piece is conveniently rotated by the user.

In one possible application, the rotating part, the pushing part, the avoiding part, the locking part and the handle part are integrally formed, the rotating part is a structure used for connecting the shell in the driving part, the pushing part is a structure used for pushing the second clamping part in the driving part, the avoiding part is a structure used for avoiding the second clamping part in the driving part, the locking part is a structure used for propping against the sliding part in the driving part, and the handle part is a structure convenient for a user to apply force in the driving part.

In some embodiments, optionally, the first clamping portion and/or the second clamping portion are provided with a receiving groove, where the receiving groove is used to receive a portion of the puncture needle, and an inner wall of the receiving groove contacts the puncture needle.

When the first clamping part and the second clamping part clamp the puncture needle, a part of the puncture needle is accommodated in the accommodating groove, and only a part of the puncture needle is accommodated in the accommodating groove, so that the clamped puncture needle can be tightly attached to the inner wall of the accommodating groove, and the puncture needle can be prevented from shaking in the accommodating groove, so that the clamping stability of the puncture needle is improved.

Through set up the holding tank on first clamping part and/or second clamping part, under the circumstances that a part of pjncture needle held in the holding tank, can increase the area of contact of first clamping part and/or second clamping part and pjncture needle for the area of force increase on pjncture needle surface, thereby the frictional force that the increase pjncture needle received, thereby can make the clamping assembly carry out the centre gripping to the pjncture needle steadily.

In some embodiments, optionally, a first guiding portion is provided on the housing, and a second guiding portion is provided on the second clamping portion, where the second guiding portion is connected to the first guiding portion, and the second guiding portion slides along the first guiding portion.

The first guide part is formed on the shell in a machining mode, the second guide part is formed on the second clamping part in a machining mode, and when the driving piece slides relative to the shell, the second guide part slides along the first guide part.

The first guide part plays a role in guiding the second guide part, so that the second clamping part can stably slide along the shell, the corresponding clamping positions of the first clamping part and the second clamping part are ensured, and the clamping stability of the puncture needle is improved.

In some aspects, optionally, the clamping assembly further comprises: and the sensor assembly is connected with the shell and used for acquiring the position of the puncture needle.

The sensor assembly is arranged on the shell, when the puncture needle moves, the puncture needle, the sensor assembly and the shell synchronously move, so that the sensor assembly can acquire the position of the puncture needle through the movement direction and the distance of the sensor assembly when the puncture needle is used for operation, a doctor can obtain the position of the puncture needle in real time and accurately through the sensor assembly, and the puncture needle can be positioned intuitively, accurately and in real time in the puncture process, so that the positioning of a needle feeding point is more accurate and convenient. Meanwhile, the position of the puncture needle can be known in real time in the whole needle inserting process, so that the puncture angle and the puncture depth can be adjusted in real time, the accuracy and the safety of puncture are greatly improved, and the operation risk is greatly reduced.

In some aspects, optionally, the sensor assembly is removably attached to the housing.

The sensor assembly can be disassembled and assembled in the shell, so that the sensor assembly can be replaced conveniently, and the clamping assembly can be matched with sensor assemblies of different models so as to meet the use requirements of users.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 shows one of the schematic structural views of a clamping assembly in an embodiment of the utility model;

FIG. 2 illustrates an exploded view of a clamping assembly in an embodiment of the utility model;

FIG. 3 shows a second schematic view of a clamping assembly according to an embodiment of the utility model;

FIG. 4 shows one of the schematic structural views of the driving member in the first position in the embodiment of the present utility model;

FIG. 5 is a second schematic view of the driving member in the first position according to the embodiment of the present utility model;

FIG. 6 shows one of the schematic structural views of the driving member in the second position in the embodiment of the present utility model;

FIG. 7 is a second schematic view of the driving member in a second position according to the embodiment of the present utility model;

FIG. 8 shows a schematic structural view of a driving member in an embodiment of the present utility model;

Fig. 9 shows a schematic structural view of the first clamping portion, the second clamping portion, and the elastic pad in the embodiment of the present utility model.

Reference numerals:

100 shells, 110 first clamping parts, 120 accommodating grooves, 130 first guiding parts, 140 slots, 150 openings, 160 pin holes, 200 second clamping parts, 210 clamping parts, 220 sliding parts, 230 pushing parts, 240 second guiding parts, 300 driving parts, 310 avoiding parts, 320 pushing parts, 330 locking parts, 331 inclined surfaces, 340 rotating parts, 350 handle parts, 360 shaft holes, 400 sensor assemblies, 410 sensors, 420 mounting plates, 500 puncture needles, 600 pins and 700 elastic pads.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

A clamping assembly for a puncture needle provided according to some embodiments of the present utility model is described below with reference to fig. 1 to 9.

As shown in connection with fig. 1 and 3, in an embodiment of the present utility model, a clamping assembly for a puncture needle is proposed, comprising: the device comprises a shell 100, a second clamping part 200 and a driving piece 300, wherein the shell 100 is provided with a first clamping part 110, and the second clamping part 200 is connected to the shell 100 in a sliding manner. The driving member 300 is rotatably connected to the housing 100, when the driving member 300 rotates to the first position, the second clamping portion 200 is located at the clamping position, and when the driving member 300 rotates to the second position, the driving member 300 is separated from the second clamping portion 200, and in the clamping position, the first clamping portion 110 and the second clamping portion 200 clamp the puncture needle 500.

When the puncture needle 500 is used, it is necessary to ensure that the puncture needle 500 is not easily moved relative to the clamping assembly, that is, the first clamping portion 110 and the second clamping portion 200 are required to stably clamp the puncture needle 500, so that the puncture needle 500 can be stably used.

In fig. 4 and 5, the driving member 300 is in the first position, and in fig. 6 and 7, the driving member 300 is in the second position.

Specifically, the driving member 300 is mounted on the housing 100, and the driving member 300 can rotate relative to the housing 100, and in the process of rotating the driving member 300 from the second position to the first position, the driving member 300 pushes the second clamping portion 200, when the driving member 300 rotates to the first position, the second clamping portion 200 is pushed to the clamping position, and at this time, the second clamping portion 200 and the first clamping portion 110 clamp the puncture needle 500, so that the puncture needle 500 is not easy to move relative to the housing 100. In the process that the driving member 300 rotates from the first position to the second position, the driving member 300 is gradually separated from the second clamping portion 200, when the driving member 300 rotates to the second position, the driving member 300 avoids the second clamping portion 200, and the first clamping portion 110 and the second clamping portion 200 are in a loose state, so that the puncture needle 500 can be detached.

The driving piece 300 is rotationally connected with the shell 100, the rotation center position of the driving piece 300 on the shell 100 cannot be changed, when the driving piece 300 rotates to the first position, the driving piece 300 can stably prop up the second clamping portion 200 at the clamping position, the first clamping portion 110 and the second clamping portion 200 are not easy to loose from each other, the first clamping portion 110 and the second clamping portion 200 can stably clamp the puncture needle 500, the puncture needle 500 is prevented from shaking, and convenience is brought to use of the puncture needle 500. In addition, the puncture needle 500 can be fixed by rotating the driving part 300, and the process of fixing the puncture needle 500 is more convenient, thereby reducing the difficulty of fixing the puncture needle 500.

In one possible application, the clamping assembly further includes a pin 600 having a pin bore 160 formed in the housing 100 and a shaft bore 360 formed in the driver 300, the pin 600 being inserted into the pin bore 160 and the shaft bore 360 to couple the driver 300 to the housing 100 and enable the driver 300 to rotate relative to the housing 100 along the pin 600.

As shown in fig. 3 and 8, in some embodiments, the driving member 300 may be provided with a relief portion 310 and a pushing portion 320, where the maximum distance between the axis of the driving member 300 and the outer edge of the relief portion 310 is L1, and the maximum distance between the axis and the outer edge of the pushing portion 320 is L2, where L1 < L2. In the first position, the pushing portion 320 abuts against the second clamping portion 200, and in the second position, the pushing portion 320 is separated from the second clamping portion 200.

The escape portion 310 of the driving member 300 is used for escaping the second clamping portion 200, and the pushing portion 320 of the driving member 300 is used for pushing the second clamping portion 200.

Specifically, the maximum distance between the avoidance portion 310 and the axis of the driving member 300 is L1, the maximum distance between the pushing portion 320 and the axis of the driving member 300 is L2, and since the distance between the pushing portion 320 and the axis is larger, when the pushing portion 320 rotates to one side of the second clamping portion 200, the pushing portion 320 can push the second clamping portion 200, so that the second clamping portion 200 moves toward the first clamping portion 110, and the second clamping portion 200 can clamp the puncture needle 500 with the first clamping portion 110. When the puncture needle 500 needs to be disassembled, the driving member 300 can be rotated, because the distance between the avoiding portion 310 and the axis is smaller, when the avoiding portion 310 rotates to one side of the second clamping portion 200, the avoiding portion 310 cannot be in contact with the second clamping portion 200, at this time, the driving member 300 and the second clamping portion 200 are in a separated state, the driving member 300 does not push the second clamping portion 200 any more, and a loose state is formed between the second clamping portion 200 and the first clamping portion 110, so that the puncture needle 500 can be disassembled.

Through setting the surface of driving piece 300 to the dysmorphism, can rotate to different positions through driving piece 300, fix and dismantle pjncture needle 500, can reduce the use degree of difficulty to the clamping assembly.

The driving member 300 in this embodiment may be a cam, and the cam rotates by a certain angle to push the second clamping portion 200 to move on the housing 100, and when the cam rotates by a certain angle, the cam is locked at the first position after being deformed by a certain amount, and at this time, the puncture needle 500 is clamped under a certain pressure, so as to realize stable clamping of the puncture needle 500.

As shown in fig. 3, in some embodiments, the outer surface of the pushing portion 320 may optionally be curved, and/or the outer surface of the relief portion 310 may be planar.

When the pushing part 320 rotates to one side of the second clamping part 200, the outer surface of the pushing part 320 contacts the second clamping part 200, and as the pushing part 320 rotates, the pushing part 320 gradually pushes the second clamping part 200, so that the second clamping part 200 and the first clamping part 110 clamp the puncture needle 500.

The outer surface of the pushing portion 320 is curved, so that the pushing portion 320 can rotate smoothly and stably with respect to the second clamping portion 200, and stability of the pushing portion 320 when pushing the second clamping portion 200 is improved.

In one possible application, the distance between the curved surface and the axis increases and decreases, and as the pushing portion 320 rotates relative to the second clamping portion 200, the pushing portion 320 can gradually push the second clamping portion 200 toward the first clamping portion 110.

The outer surface of the avoidance portion 310 is provided as a plane, and when the avoidance portion 310 rotates to one side of the second clamping portion 200, the plane does not push the second clamping portion 200, and at this time, the puncture needle 500 can be detached.

Of course, in other embodiments, the outer surface of the relief portion 310 may be configured as an inward concave surface.

As shown in fig. 3, in some embodiments, optionally, the driving member 300 is provided with a locking portion 330, where the locking portion 330 abuts against the second clamping portion 200, so that the locking portion 330 limits the rotation of the driving member 300 relative to the housing 100, and where the locking portion 330 is separated from the second clamping portion 200.

When the driving member 300 rotates to the first position, the pushing portion 320 pushes the second clamping portion 200 to the clamping position, and in order to ensure that the driving member 300 is stably positioned at the first position, it is necessary to contact the second clamping portion 200 through the locking portion 330, thereby locking the driving member 300 at the first position.

Specifically, when the driving member 300 rotates to the first position, the locking portion 330 abuts against the second clamping portion 200, and at this time, the locking portion 330 abuts against the second clamping portion 200, and under the limitation of the locking portion 330, the driving member 300 is difficult to continue rotating, so that the driving member 300 is limited to the first position, and the driving member 300 is ensured to stably limit the second clamping portion 200 to the clamping position, thereby improving the clamping stability of the puncture needle 500.

As shown in fig. 3, in some embodiments, optionally, an inclined surface 331 is provided at an end of the locking portion 330 facing away from the axis of the driving member 300, and the distance between the inclined surface 331 and the axis increases or decreases in the rotation direction of the driving member 300.

The end surface of the end of the locking portion 330 facing away from the axis is an inclined surface 331, and illustratively, the first side of the inclined surface 331 is spaced relatively far from the axis, and the second side of the inclined surface 331 is spaced relatively far from the axis. When the puncture needle 500 needs to be mounted, the driver 300 is rotated, the second side of the inclined surface 331 is firstly contacted with the second clamping portion 200, the locking portion 330 starts to block the rotation of the driver 300, the driver 300 can be continuously rotated only by increasing the driving force of the driver 300, the locking portion 330 gradually presses against the surface of the second clamping portion 200 along with the further rotation of the driver 300, and the locking portion 330 limits the rotation of the driver 300, so that the driver 300 is limited at the first position. By setting the end surface of the locking member to the inclined surface 331, the driving member 300 can be rotated more tightly, and the driving member 300 can be fixed conveniently. Further, since the end surface of the locking portion 330 is the inclined surface 331, it is also convenient to unlock the driver 300.

As shown in connection with fig. 2 and 3, in some embodiments, the second clamping portion 200 optionally includes: the clip 210 is used to clip the puncture needle 500 with the first clip portion 110, and the pushing portion 320 abuts against the clip 210 at the clip position, and the slider 220. The sliding member 220 is connected to the clamping member 210, a set angle is formed between the clamping member 210 and the sliding member 220, and in the clamping position, the locking portion 330 abuts against the sliding member 220.

An included angle is formed between the clamping member 210 and the sliding member 220, for example, a right angle is formed between the clamping member 210 and the sliding member 220, and when the puncture needle 500 needs to be fixed, the pushing portion 320 pushes the clamping member 210, so that the clamping member 210 and the first clamping portion 110 clamp the puncture needle 500. During rotation of the driving member 300 in the first direction, the locking portion 330 rotates to a position contacting the sliding member 220, and when the locking portion is pressed against the surface of the sliding member 220, the driving member 300 is difficult to continue to rotate in the first direction, thereby restricting the driving member 300 to the first position. When the puncture needle 500 needs to be disassembled, the puncture needle 500 is rotated along the second direction, the locking part 330 is separated from the slider 220, and the pushing part 320 is separated from the clamping part 210, so that the clamping part 210 and the first clamping part 110 are in a loose state, and the puncture needle 500 can be pulled out.

In this embodiment, the clamping member 210 and the sliding member 220 have an L-shape.

As shown in conjunction with fig. 2 and 3, in some embodiments, optionally, the second clamping portion 200 further includes: the pushing member 230, the pushing member 230 is connected to the clamping member 210, and the housing 100 is provided with a through hole, and in the clamping position, the pushing member 230 passes through the through hole.

When the puncture needle 500 on the clamping assembly needs to be disassembled, the driving member 300 is rotated to the second position, the driving member 300 no longer pushes the second clamping portion 200, and at this time, the first clamping portion 110 and the second clamping portion 200 are in a loose state, but due to the friction force between the puncture needle 500 and the first clamping portion 110 and/or the second clamping portion 200, the process of pulling out the puncture needle 500 may still be blocked, so that the second clamping portion 200 needs to be moved in a direction away from the first clamping portion 110, so as to facilitate the disassembly of the puncture needle 500.

The pushing member 230 is disposed on the clamping member 210, the housing 100 is provided with a through hole, the pushing member 230 faces the through hole, when the driving member 300 pushes the second clamping portion 200, the pushing member 230 moves towards the through hole, when the second clamping portion 200 moves to the clamping position, the pushing member 230 passes through the through hole, the through hole is used for avoiding the pushing member 230, and at this time, a part of the pushing member 230 protrudes out of the surface of the housing 100 after passing through the through hole.

When the puncture needle 500 needs to be disassembled, the driving piece 300 is rotated to the second position, the driving piece 300 does not push the second clamping portion 200 any more, and the user can push the pushing piece 230, so that the second clamping portion 200 moves in a direction away from the first clamping portion 110, and the gap between the second clamping portion 200 and the first clamping portion 110 is increased, so that the puncture needle 500 can be disassembled conveniently.

As shown in connection with fig. 2 and 3, in some embodiments, optionally, the driver 300 includes: the rotation part 340 and the handle part 350, the rotation part 340 is rotatably connected with the housing 100, the handle part 350 is connected with the rotation part 340, and the handle part 350 extends in a direction away from the axis of the driving member 300.

The rotating part 340 is installed on the housing 100 and is rotatably connected with the housing 100, and the handle part 350 is provided on the rotating part 340, so that a user can hold the handle part 350 when rotating the driving piece 300, thereby facilitating the application of force to the driving piece 300 and the rotation of the driving piece 300 by the user.

In one possible application, the rotating portion 340, the pushing portion 320, the avoiding portion 310, the locking portion 330 and the handle portion 350 are integrally formed, the rotating portion 340 is a structure in the driving member 300 for connecting to the housing 100, the pushing portion 320 is a structure in the driving member 300 for pushing the second clamping portion 200, the avoiding portion 310 is a structure in the driving member 300 for avoiding the second clamping portion 200, the locking portion 330 is a structure in the driving member 300 for abutting against the sliding member 220, and the handle portion 350 is a structure in the driving member 300 for facilitating the application of force by a user.

As shown in connection with fig. 2 and 3, in some embodiments, optionally, the first clamping portion 110 and/or the second clamping portion 200 may have a receiving groove 120 thereon, where the receiving groove 120 is configured to receive a portion of the lancet 500, and an inner wall of the receiving groove 120 is in contact with the lancet 500.

When the first clamping part 110 and the second clamping part 200 clamp the puncture needle 500, a part of the puncture needle 500 is accommodated in the accommodating groove 120, and only a part of the puncture needle 500 is accommodated in the accommodating groove 120, so that the clamped puncture needle 500 can be tightly attached to the inner wall of the accommodating groove 120, and the puncture needle 500 can be prevented from shaking in the accommodating groove 120, thereby improving the clamping stability of the puncture needle 500.

By providing the accommodating groove 120 in the first clamping portion 110 and/or the second clamping portion 200, when a portion of the puncture needle 500 is accommodated in the accommodating groove 120, the contact area between the first clamping portion 110 and/or the second clamping portion 200 and the puncture needle 500 can be increased, so that the force receiving area on the surface of the puncture needle 500 can be increased, the friction force applied to the puncture needle 500 can be increased, and the puncture needle 500 can be stably clamped by the clamping assembly.

In this embodiment, the accommodating groove 120 is a V-shaped groove, and in other embodiments, the accommodating groove 120 may be a trapezoid groove. The design of the V-shaped groove can play a role in centering the needle body of the puncture needle 500, and ensures the relative position of the long axis of the needle body of the puncture needle 500 and the sensor assembly 400.

In this embodiment, the accommodating groove 120 is disposed on each of the first clamping portion 110 and the second clamping portion 200.

As shown in fig. 9, in some embodiments, optionally, the first clamping portion 110 is provided with a receiving groove 120, and the receiving groove 120 is configured to receive a portion of the puncture needle 500. The clamping assembly further comprises: the elastic pad 700, the elastic pad 700 is connected to the second clamping portion 200, and the elastic pad 700 and the first clamping portion 110 are used to clamp the puncture needle 500.

The receiving groove 120 may be a V-groove, and the second clamping portion 200 may be provided with a V-groove, or may be replaced with other clamping structures, including but not limited to a planar clamping mechanism with a resilient pad 700. At this time, when the second clamping portion 200 is pushed to the first clamping portion 110, the clamped lancet is fixed in its axial position and direction by the V-shaped groove on the first clamping portion 110, and the planar clamping mechanism with the elastic pad 700 on the second clamping portion 200 increases the friction between the second clamping portion and the body of the lancet 500, so that the lancet 500 is not easy to slide in the axial direction, and the clamping is more secure and stable, thereby increasing the safety and success rate of the operation.

Illustratively, the resilient pad 700 is a rubber pad.

As shown in fig. 2, in some embodiments, optionally, a first guiding portion 130 is provided on the housing 100, and a second guiding portion 240 is provided on the second clamping portion 200, where the second guiding portion 240 is connected to the first guiding portion 130, and the second guiding portion 240 slides along the first guiding portion 130.

The housing 100 is formed with a first guide 130, and the second clamping portion 200 is formed with a second guide 240, and when the driver 300 slides relative to the housing 100, the second guide 240 slides along the first guide 130.

The first guide portion 130 plays a role in guiding the second guide portion 240, so that the second clamping portion 200 can stably slide along the housing 100, and the clamping positions on the first clamping portion 110 and the second clamping portion 200 are ensured to be corresponding, thereby improving the clamping stability of the puncture needle 500.

Illustratively, the first guide 130 is a dovetail groove, the second guide 240 is a trapezoid block, the trapezoid block can slide in the dovetail groove, and the dovetail groove limits the trapezoid block, so as to avoid the second clamping portion 200 from being separated from the housing 100.

As shown in connection with fig. 1 and 2, in some embodiments, optionally, the clamping assembly further comprises: sensor assembly 400, sensor assembly 400 is coupled to housing 100, sensor assembly 400 being used to obtain the position of needle 500.

The sensor assembly 400 is mounted on the housing 100, and when the puncture needle 500 moves, the puncture needle 500, the sensor assembly 400 and the housing 100 move synchronously, so that when the puncture needle 500 is used for operation, the sensor assembly 400 can acquire the position of the puncture needle 500 through the movement direction and the distance of the sensor assembly 400, a doctor can obtain the position of the puncture needle 500 accurately in real time through the sensor assembly 400, and the puncture needle 500 can be positioned intuitively, accurately and in real time in the puncture process, so that the positioning of a needle feeding point is more accurate and convenient. Meanwhile, the position of the puncture needle 500 can be known in real time in the whole needle inserting process, so that the puncture angle and the puncture depth can be adjusted in real time, the accuracy and the safety of puncture are greatly improved, and the operation risk is greatly reduced.

Specifically, as the cam rotates, the second clamping part 200 can slide along the first guiding part 130 on the housing 100, when the cam rotates by a certain angle, the second clamping part 200 is pushed to a certain position and forms clamping with the housing 100 together with the puncture needle 500, in the process, the long diameter of the cam rotates by a certain angle, the rotation of the cam requires a certain external force to enable the cam to bear a certain compression deformation in the long diameter direction, and the other rotation direction is limited by the locking part 330, so that the cam can maintain the clamping state at this time.

When the cam rotates by a certain angle, the second clamping part 200 and the V-shaped groove on the housing 100 clamp the puncture needle 500, and at this time, the cam continues to rotate, and the long diameter part of the cam is subjected to a certain compression deformation and then reaches an angle. At this time, the deformation at the long diameter is recovered, the limiting mechanism on the cam limits the cam to continue to rotate towards the direction, and a certain external force is required for the cam to undergo compression deformation at the long diameter again by rotating towards the opposite direction, so that the cam is locked at the angle, and the second clamping part 200 is also locked at the corresponding position and maintains clamping of the puncture needle 500.

When the cam is applied with external force in the locking position, the cam rotates, the long diameter part returns to the free position after compression deformation, and the cam continues to rotate at the moment, so that the pressure applied by the cam to the second clamping part 200 is reduced to disappear, the second clamping part 200 can slide freely and unlock, at the moment, the second clamping part 200 and the first clamping part 110 are opened, and the puncture needle 500 can be unloaded.

In some embodiments, optionally, the sensor assembly 400 is removably attached to the housing 100.

Sensor assembly 400 can be dismantled and assembled in casing 100 to be convenient for change sensor assembly 400, make the sensor assembly 400 of centre gripping subassembly different models of adaptation, in order to satisfy user's user demand.

Illustratively, the sensor assembly 400 includes a sensor 410 and a mounting plate 420, the mounting plate 420 is locked to the housing 100 by a screw, a mounting hole is provided in the mounting plate 420, and the sensor 410 may be inserted into the mounting hole by interference.

As shown in FIG. 2, in some embodiments, alternatively, slots 140 are provided on opposite sidewalls of the housing 100, and an opening 150 is provided at one end of the slots 140, and the opening 150 is used for the puncture needle 500 to extend into the slots 140.

In fixing the puncture needle 500, the puncture needle 500 is inserted into the insertion slot 140 through the opening 150, and then the puncture needle 500 is clamped by the first clamping part 110 and the second clamping part 200. In this process, the middle portion of the puncture needle 500 may directly extend into the slot 140, and the puncture needle 500 is installed or uninstalled from the side, without touching the end portion of the puncture needle 500 to the clamping assembly, which may reduce the risk of contamination to the puncture needle 500 and facilitate improvement of surgical safety.

In this embodiment, between the two slots 140, the housing 100 has a hollow structure, and the part of the hollow structure is used for sliding the second clamping portion 200, and a part of the first clamping portion 110 is used as one side wall of the slot 140, after the puncture needle 500 extends into the slot 140, the puncture needle 500 can be attached to the first clamping portion 110, and then the second clamping portion 200 is moved to clamp the puncture needle 500.

Through the clamping assembly provided in the embodiment, the positioning problem of the puncture needle 500 in the puncture operation is solved, the clamping assembly is adapted to the puncture needle 500 with the specified outer diameter, and meanwhile, the sensor assemblies 400 with different types can be expanded and adapted. The sensor assembly 400 can be used for acquiring the real-time position of the puncture needle 500, so that a doctor can acquire real-time feedback of the position of the puncture needle 500 in the puncture operation process, the accuracy and the safety of the puncture operation are greatly improved, and part of risks in the operation process are avoided.

The driving tool 300 adopts a cam mechanism, so that the puncture needle 500 can be effectively fixed, and after the puncture needle 500 is loaded, the second clamping part 200 can be continuously fixed at the fixed position of the puncture needle 500, and the function of positioning the sensor assembly 400 can also be realized. The driving member 300 serves as a switch button, and can easily open the first clamping portion 110 and the second clamping portion 200 by a human force while securing the pressure of the puncture needle 500 at the time of closing. The overall structure of the clamping assembly of the embodiment is small in size, and the visual field and operation of the operation are not easy to influence.

Illustratively, the sensor 410 is a six degree of freedom sensor, and the sensor assembly 400 of the present embodiment is based on the principle: tracking and positioning of the needle 500 can be accomplished in conjunction with a navigation system, including but not limited to magnetic navigation.

In the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (14)

1. A clip assembly for a needle, comprising:

the shell is provided with a first clamping part;

the second clamping part is connected with the shell in a sliding way;

The driving piece is rotationally connected to the shell, when the driving piece rotates to a first position, the second clamping part is positioned at a clamping position, and when the driving piece rotates to a second position, the driving piece is separated from the second clamping part;

Wherein, in the clamping position, the first clamping part and the second clamping part clamp the puncture needle.

2. The clamping assembly for a puncture needle according to claim 1, wherein the driving member is provided with an avoidance portion and a pushing portion, the maximum distance between the axis of the driving member and the outer edge of the avoidance portion is L1, and the maximum distance between the axis and the outer edge of the pushing portion is L2, wherein L1 is smaller than L2;

In the first position, the pushing portion abuts against the second clamping portion, and in the second position, the pushing portion is separated from the second clamping portion.

3. The clip assembly for a lancet of claim 2, wherein the outer surface of the pusher is curved; and/or

The outer surface of the avoidance part is a plane.

4. The clip assembly of claim 2 wherein the drive member is provided with a locking portion, the locking portion abutting the second clip portion in the first position such that the locking portion limits rotation of the drive member relative to the housing, and the locking portion being separated from the second clip portion in the second position.

5. The clip assembly for a lancet of claim 4, wherein an end of the locking portion facing away from the axis of the drive member is provided with an inclined surface, and wherein the distance between the inclined surface and the axis increases or decreases in the direction of rotation of the drive member.

6. The clip assembly for a lancet of claim 4, wherein the second clip portion comprises:

The clamping piece is used for clamping the puncture needle with the first clamping part, and the pushing part is propped against the clamping piece at the clamping position;

The sliding piece is connected with the clamping piece, a set included angle is arranged between the clamping piece and the sliding piece, and the locking part abuts against the sliding piece in the clamping position.

7. The clip assembly for a lancet of claim 6, wherein the second clip portion further comprises:

The pushing piece is connected with the clamping piece, a through hole is formed in the shell, and the pushing piece penetrates through the through hole in the clamping position.

8. A clip assembly for a puncture needle as set forth in any one of claims 1 to 3, wherein the driver comprises:

a rotating part rotatably connected with the shell;

And a handle portion connected to the rotating portion, the handle portion extending in a direction away from the axis of the driving member.

9. A clip assembly for a lancet according to any one of claims 1 to 3, wherein the first clip portion and/or the second clip portion is provided with a receiving slot for receiving a portion of the lancet, the inner wall of the receiving slot being in contact with the lancet.

10. A clip assembly for a puncture needle as set forth in any one of claims 1 to 3, wherein the first clip portion is provided with a receiving groove for receiving a portion of the puncture needle; the clamping assembly further comprises: and the elastic pad is connected with the second clamping part, and the elastic pad and the first clamping part are used for clamping the puncture needle.

11. A clip assembly for a puncture needle according to any one of claims 1 to 3, characterized in that a first guide part is provided on the housing, a second guide part is provided on the second clip part, the second guide part is connected to the first guide part, and the second guide part slides along the first guide part.

12. A clip assembly for a puncture needle as recited in any of claims 1 to 3, further comprising:

And the sensor assembly is connected with the shell and is used for acquiring the position of the puncture needle.

13. The clip assembly for a lancet of claim 12, wherein the sensor assembly is removably attached to the housing.

14. A clip assembly for a lancet according to any one of claims 1 to 3, wherein slots are provided in opposite side walls of the housing, one end of the slots being provided with an opening for the lancet to extend into the slots.