WO2022116062A1

WO2022116062A1 - Frame body and puncture frame

Info

Publication number: WO2022116062A1
Application number: PCT/CN2020/133450
Authority: WO
Inventors: 王沁
Original assignee: 苏州市立普医疗科技有限公司
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2022-06-09

Abstract

A frame body and a puncture frame. The frame body comprises an annular frame (1) and a locking assembly (2); the annular frame (1) comprises an upper frame (11) and a lower frame (12); two ends of the upper frame (11) are connected to two ends of the lower frame (12) to form an annular structure, wherein at least one end of the upper frame (11) and at least one end of the lower frame (12) are connected by means of the locking assembly (2); the locking assembly (2) comprises a push-pull lock catch (20) and a limiting structure (21); the push-pull lock catch (20) is connected to the upper frame (11) and can slide on the upper frame (11); the limiting structure (21) is connected to the lower frame (12); the push-pull lock catch (20) slides to a first position to be in snap connection with the limiting structure (21) and slides to a second position to release the snap connection with the limiting structure (21), such that locking or unlocking of the upper frame (11) and the lower frame (12) is achieved. According to the frame body, in the case that a locking effect can be ensured, the locking assembly (2) occupies a small space, the required operating space is small, and the operation is simple and fast.

Description

A frame body and a puncture stent

technical field

The present invention relates to the technical field of puncture equipment, in particular to a frame body and a puncture stent.

Background technique

Ultrasound interventional surgery is a new technology developed on the basis of ultrasonic images. During the operation, an ultrasonic probe puncture bracket needs to be installed on the ultrasonic probe, and then under the precise guidance of the ultrasonic probe puncture bracket, the puncture operation is performed, and the puncture needle can reach the lesion. Surgical operations such as suction, drug administration, and catheter placement can be performed, or fine treatment operations such as microwave, radio frequency, and laser energy can be given. Ultrasound interventional surgery is different from traditional surgical operations. It does not require surgery and only needs a fine needle puncture to complete. The patient suffers less pain, does not require hospitalization, and is relatively safe, simple to operate, and of high practical value.

The frame body of the ultrasonic probe puncture bracket is used to connect the ultrasonic probe, and the frame body is generally a split structure, which is composed of an upper bracket and a lower bracket, and the upper bracket and the lower bracket are connected to form a ring structure. In the existing common frame body, one end of the upper bracket and the lower bracket are rotatably connected, and the other end is connected by screws. The screw connection method is cumbersome, time-consuming and labor-intensive in disassembly and assembly, and the screw structure occupies a certain space, which may affect the surgical operation. In addition, the locking effect of the screw connection is poor, which may lead to the movement of the ultrasound probe, thereby affecting the operation.

SUMMARY OF THE INVENTION

The invention provides a frame body and a puncture support. The upper support and the lower support are connected by a locking assembly, and the locking assembly is locked or opened by pushing and pulling. Under the condition that the locking effect can be ensured, the locking The components occupy a small space, the required operation space is small, and the operation is simple and fast.

In one aspect of the present invention, a frame body is provided, including an annular bracket and a locking assembly; the annular bracket includes an upper bracket and a lower bracket, and both ends of the upper bracket and the lower bracket are connected to form an annular structure, wherein the upper bracket and the lower bracket are connected. At least one end of the lower bracket is connected by a locking assembly; the locking assembly includes a push-pull lock and a limit structure, the push-pull lock is connected with the upper bracket and can slide on the upper bracket, and the limit structure is connected with the lower bracket; the push-pull lock Sliding to the first position and engaging with the limiting structure, sliding to the second position to release the engaging with the limiting structure, thereby realizing the locking or opening of the upper bracket and the lower bracket.

Optionally, the push-pull lock includes a push button, the first plate surface of the push button is provided with a strip-shaped first protrusion, and the length direction of the first protrusion is the same as the sliding direction of the push-pull lock. The end away from the push button is provided with a first baffle plate, the first baffle plate, the first protrusion and the push button form a first slot; the limiting structure includes a strip-shaped second protrusion, and the length direction of the second protrusion is In the same sliding direction as the push-pull lock, the end of the second protrusion away from the lower bracket is provided with a second baffle plate, the second baffle plate, the second bulge and the outer wall of the lower bracket form a second slot; The extending direction of the first baffle is opposite to the extending direction of the second baffle along the second bulge. When the push-pull lock is in the first position, the first baffle is inserted into the second slot, and the second baffle is inserted into the first slot. , when the push-pull lock is in the second position, the first baffle moves out of the second slot, and the second baffle moves out of the first slot.

Optionally, a limit stop is provided at one end of the second protrusion away from the push button.

Optionally, the locking assembly further includes a slide rail, the slide rail is connected with the upper bracket, the first plate surface of the push button is provided with a raised slide groove, and the slide groove is clamped on the slide rail, so that the push-pull lock can be locked. Slide freely on the rails.

Optionally, the slide rail includes a main body, and one end of the main body away from the upper bracket is provided with a limit protrusion, and the limit protrusion, the side wall of the main body and the outer wall of the upper bracket form a limit groove; One end is provided with a clamping part, the sliding groove is clamped with the sliding rail, and the clamping part is clamped in the limit groove.

Optionally, the first end of the slide rail is provided with a first block, and the second end is provided with a second block; when the first end of the push button abuts the first block, the push-pull lock When the second end of the button abuts against the second block, the push-pull lock is in the second position.

Optionally, one end of the upper bracket and the lower bracket are rotatably connected, and the other end is connected by the locking assembly.

Optionally, the second plate surface of the push button is provided with anti-skid patterns.

In another aspect of the present invention, there is also provided a puncture stent, comprising the above-mentioned frame body.

Optionally, a needle holder structure is also included. The needle holder structure is arranged at the apex of the upper holder. Along the circumferential direction of the annular holder, the included angle between the needle holder structure and the locking assembly is 90 degrees.

In the technical solution provided by the present invention, the push-pull lock can be moved between limited positions. When moving to the first position, the push-pull lock is clamped with the limit structure. At this time, the upper bracket and the lower bracket are locked. When moving the push-pull lock, the push-pull lock moves to the second position, at this position, the upper bracket and the lower bracket are unlocked and can be opened.

In the frame body, under the condition that the locking effect can be ensured, the locking component occupies a small space, requires a small operating space, and is simple and quick to operate.

Description of drawings

For purposes of illustration and not limitation, the present invention will now be described in accordance with preferred embodiments thereof, particularly with reference to the accompanying drawings, wherein:

1 is a schematic structural diagram of a frame body provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a locking assembly in a frame body located on one side of an upper frame body according to an embodiment of the present invention;

3 is a schematic structural diagram of a locking assembly in a frame body located on one side of an upper frame body according to an embodiment of the present invention;

4 is a cross-sectional view of the frame provided by an embodiment of the present invention when it is in a first position;

5 is a cross-sectional view of the frame provided by an embodiment of the present invention when it is in a second position;

FIG. 6 is a schematic structural diagram of a puncture stent provided by an embodiment of the present invention.

In the picture:

1: Ring bracket; 2: Locking assembly; 3: Needle holder structure;

11: upper bracket; 12: lower bracket;.

20: Push-pull lock; 21: Limiting structure; 23: Slide rail; 201: Push button; 2011: First protrusion; 2012: First baffle; 2013: Chute; 212: Second baffle; 213: Limit stop; 231: Main body; 232: Limit protrusion; 233: Limit groove; 234: First stop; 235: Second stop.

Detailed ways

In the embodiment provided by the present invention, the upper bracket and the lower bracket are locked or opened by the locking assembly. Under the condition that the locking effect is ensured, the locking assembly occupies a small space, requires a small operating space, and the operation is simple and fast. The following Be specific.

FIG. 1 is a schematic structural diagram of a frame body provided by an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a locking assembly 2 in the frame body provided by an embodiment of the present invention located on one side of the upper frame body; FIG. 3 is a frame provided by an embodiment of the present invention. Schematic diagram of the structure of the locking assembly 2 in the body located on one side of the upper frame body. As shown in Figures 1 to 3, the frame body includes an annular bracket 1 and a locking assembly 2; the annular bracket 1 includes an upper bracket 11 and a lower bracket 12, and both ends of the upper bracket 11 and the lower bracket 12 are connected to form an annular structure, Wherein, at least one end of the upper bracket 11 and the lower bracket 12 is connected by a locking assembly 2; the locking assembly 2 includes a push-pull lock 20 and a limiting structure 21, and the push-pull lock 20 is connected with the upper bracket 11 and can be connected to the upper bracket 11 By sliding up, the limiting structure 21 is connected with the lower bracket 12 ; the push-pull latch 20 slides to the first position to engage with the limiting structure 21 , and slides to the second position to release the engagement with the limiting structure 21 , thereby realizing the upper bracket 11 And the lower bracket 12 is locked or opened.

Compared with the existing screw, the push-pull lock 20 is not an independent structure. The push-pull lock 20 is always connected to the upper bracket 11 and can be moved between two positions. When moving to the first position, the push-pull The locking buckle 20 is clamped with the limiting structure 21 arranged in the first position, wherein the limiting structure 21 is arranged on the lower bracket 12, so as to realize the fixed connection between the upper bracket 11 and the lower bracket 12, and the upper bracket 11 and the lower bracket 12 Hold the ultrasonic probe tightly to achieve a stable connection between the frame and the ultrasonic probe.

The push-pull lock 20 can achieve stable connection between the upper bracket 11 and the lower bracket 12 through a simple push-pull operation. During operation, the push-pull lock 20 can only be moved between two positions, and will not occupy a large space by itself. , and does not require excessive operating space.

FIG. 4 is a cross-sectional view of the frame provided by an embodiment of the present invention when the frame is in a first position; FIG. 5 is a cross-sectional view of the frame provided by an embodiment of the present invention at a second position. As shown in FIG. 1 to FIG. 5 , the push-pull lock 20 includes a push button 201 . The first plate surface of the push button 201 is provided with a strip-shaped first protrusion 2011 . The length direction of the first protrusion 2011 is related to the push-pull lock. The sliding direction of the buckle 20 is the same. The end of the first protrusion 2011 away from the push button 201 is provided with a first baffle 2012. The first baffle 2012, the first protrusion 2011 and the push button 201 form a first slot; the limiting structure 21 includes a strip-shaped second protrusion 211. The length direction of the second protrusion 211 is the same as the sliding direction of the push-pull lock 20. The end of the second protrusion 211 away from the lower bracket 12 is provided with a second baffle 212. The two baffles 212 , the second protrusions 211 and the outer wall of the lower bracket 12 form a second slot; In the opposite direction, when the push-pull lock 20 is in the first position, the first baffle 2012 is inserted into the second slot, the second baffle 212 is inserted into the first slot, and when the push-pull lock 20 is in the second position, the first baffle 2012 Moving out of the second slot, the second baffle plate 212 is moved out of the first slot.

The first baffle 2012 is in the second slot, and when the second baffle 212 is in the first slot, the push button 201 is clamped with the limiting structure 21, and the push button 201 cannot produce any direction other than the sliding direction. move, thereby locking the upper bracket 11 and the lower bracket 12 . When the first baffle 2012 moves out of the second slot and the second baffle 212 moves out of the first slot, the locked state can be released at this time, that is, when the upper bracket 11 and the lower bracket 12 are opened, the limiting structure 21 does not affect the push button 201 is normally opened, thereby realizing the unlocking of the push button 201 and the limiting structure 21 .

As shown in FIG. 2 , a limit block 213 is provided at one end of the second protrusion 211 away from the push button 201 . The limit block 213 is integrally formed with the lower bracket 12 , and is disposed at one end of the second slot to play a blocking and limiting role. When the push button 201 moves to the first position, it finally abuts on the limit block 213 . When the push button 201 abuts against the limiting block 213 , the limiting block 213 will give feedback that the push button 201 is blocked. At this time, it means that the push button 201 reaches the first position.

In the embodiment of the present invention, the locking assembly 2 further includes a slide rail 23, the slide rail 23 is connected with the upper bracket 11, the first plate surface of the push button 201 is provided with a raised slide groove 2013, and the slide groove 2013 is clamped on the slide so that the push-pull lock catch 20 can slide freely on the slide rail 23 . The sliding rail 23 can determine the sliding direction of the push-pull lock 20 and has a guiding effect on the push-pull lock 20 . The slide rail 23 includes a main body 231, the end of the main body 231 away from the upper bracket 11 is provided with a limit protrusion 232, the limit protrusion 232, the side wall of the main body 231 and the outer wall of the upper bracket 11 form a limit groove 233; the sliding groove 2013 One end of the side wall away from the push button 201 is provided with a clamping part 2014 , the sliding groove 2013 is clamped with the sliding rail 23 , and the clamping part 2014 is clamped in the limiting groove 233 . The push-pull lock 20 is always connected to the slide rail 23 , and a sliding operation can be achieved between the two, but cannot be separated, that is, the push-pull lock 20 will not fall off the slide rail 23 .

As shown in FIG. 3 , the first end of the slide rail 23 is provided with a first stopper 234 , and the second end is provided with a second stopper 235 ; when the first end of the push button 201 abuts against the first stopper 234 , the push-pull lock The buckle 20 is in the first position, when the second end of the push button 201 abuts the second stopper 235 , the push-pull lock buckle 20 is at the second position, wherein the first stopper 234 and the limit stopper 213 jointly oppose the push button 201 Play a limiting role. By further arranging the first stopper 234 and the second stopper 235, the operation of the push-pull lock 20 can be further simplified, that is, when the push-pull lock 20 abuts the first stopper 234, it defaults to the first position, and the push-pull lock 20 abuts against the first stopper 234 by default. When the second stopper 235 is connected, it is assumed to reach the second position by default, and there is no need to perform position judgment, and the opening and closing operation of the push-pull lock 20 can be quickly realized.

In the embodiment of the present invention, one end of the upper bracket 11 and the lower bracket 12 are rotatably connected, and the other end is connected through the locking assembly 2 . The rotating connection ends of the upper bracket 11 and the lower bracket 12 are connected by a rotating shaft, so that the upper bracket 11 and the lower bracket 12 can rotate freely, but will not be separated. When the bracket body is connected with the ultrasonic probe, a locking assembly 2 can be operated.

In the embodiment of the present invention, the second plate surface of the push button 201 is provided with anti-slip patterns, and the anti-slip patterns can increase the friction between the hand and the push button 201, thereby facilitating the push-pull operation. There are indication labels on the panel surface or side end surface, which play the role of operation prompt.

FIG. 6 is a schematic structural diagram of a puncture stent provided by an embodiment of the present invention. As shown in FIG. 6 , the puncture stent includes the above-mentioned frame body and needle holder structure 3 . During the puncture operation, push the push-pull lock 20 to the second position, where the push-pull lock 20 is in an unlocked state, the annular support 1 can be opened, and the ultrasonic probe is placed in the annular support 1, and then merged between the upper support 11 and the lower support , push the push-pull lock 20 to the first position, and the push button 201 is clamped on the limiting structure 21, so that the upper bracket 11 and the lower bracket 12 are locked. At this time, the connection between the puncture and the ultrasonic probe is completed, and the puncture can be performed. operate. When the ultrasonic probe needs to be removed, push the push-pull lock 20 to the second position in reverse, open the upper bracket 11 and the lower bracket 12, and take out the ultrasonic probe.

In the embodiment of the present invention, the upper bracket 11 and the lower bracket 12 are semicircular arched structures, and the needle holder structure 3 is arranged at the vertex of the upper bracket 11. Along the circumferential direction of the annular bracket 1, the needle holder structure 3 and the lock The included angle between the tightening components 2 is 90 degrees. When the puncture frame is fixed on the ultrasonic probe, the push-pull latch 20 is located at the side end of the puncture frame as a whole, which is convenient for the push-pull operation.

The above-mentioned specific embodiments do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

A frame body, characterized in that it comprises an annular support (1) and a locking assembly (2);

The annular support (1) includes an upper support (11) and a lower support (12), and both ends of the upper support (11) and the lower support (12) are connected to form an annular structure, wherein the upper support (11) and the lower support (12) At least one end of 12) is connected by the locking assembly (2);

The locking assembly (2) includes a push-pull lock catch (20) and a limit structure (21), the push-pull lock catch (20) is connected with the upper bracket (11) and can slide on the upper support (11), and the limit structure ( 21) Connect with the lower bracket (12);

The push-pull lock (20) slides to the first position to be engaged with the limiting structure (21), and slides to the second position to release the engagement with the limiting structure (21), thereby realizing the upper bracket (11) and the lower bracket (12) ) to lock or open.
The rack body according to claim 1, wherein the push-pull lock (20) comprises a push button (201), and the first plate surface of the push button (201) is provided with a strip-shaped first protrusion (2011). ), the length direction of the first protrusion (2011) is the same as the sliding direction of the push-pull lock (20), the end of the first protrusion (2011) away from the push button is provided with a first baffle (2012), the first baffle (2012), the first protrusion (2011) and the push button (201) form a first slot;

The limiting structure (21) includes a strip-shaped second protrusion (211), the length direction of the second protrusion (211) is the same as the sliding direction of the push-pull lock (20), and the second protrusion (211) is far away from the bottom. One end of the bracket (12) is provided with a second baffle plate (212), and the second baffle plate (212), the second protrusion (21111) and the outer wall of the lower bracket (12) form a second slot;

The extending direction of the first baffle plate (2012) along the first protrusion (2011) is opposite to the extending direction of the second baffle plate (212) along the second protrusion (211), and when the push-pull latch (20) is in the first position , the first baffle (2012) is inserted into the second slot, the second baffle (212) is inserted into the first slot, and when the latch (20) is in the second position, the first baffle (2012) is moved out of the second slot slot, the second baffle plate (212) is moved out of the first slot.
The frame body according to claim 2, characterized in that a limit stop block (213) is provided at one end of the second protrusion (211) away from the push button (201).
The frame body according to claim 2, characterized in that, the locking assembly (2) further comprises a slide rail (23), the slide rail (23) is connected with the upper bracket (11), and the first plate of the push button (201) A raised chute (2013) is provided on the surface, and the chute (2013) is clamped on the slide rail (23), so that the push-pull lock (20) can slide freely on the slide rail (23).
The frame body according to claim 4, wherein the slide rail (23) comprises a main body (231), and an end of the main body (231) away from the upper bracket (11) is provided with a limiting protrusion (232), and the limiting protrusion (232), the side wall of the main body (231) and the outer wall of the upper bracket (11) form a limiting groove (233);

One end of the side wall of the chute (2013) away from the push button (201) is provided with a clamping part (2014), the chute (2013) is clamped with the sliding rail (23), and the clamping part (2014) is clamped in the limit. in bit slot (233).
The frame body according to claim 5, characterized in that the first end of the slide rail (23) is provided with a first stopper (234), and the second end is provided with a second stopper (235);

When the first end of the push button (201) abuts against the first block (234), the push-pull lock (20) is in the first position, and when the second end of the push button (201) abuts against the second block (235) , the push-pull lock (20) is located in the second position.
The rack body according to claim 1, characterized in that, one end of the upper bracket (11) and the lower bracket (12) are rotatably connected, and the other end is connected by the locking assembly (2).
The frame body according to claim 2, characterized in that, the second plate surface of the push button (201) is provided with anti-skid patterns.
A puncture stent, characterized by comprising the frame body according to any one of claims 1 to 8.
The puncture stent according to claim 9, characterized in that it further comprises a needle holder structure (3), the needle holder structure (3) is arranged at the apex of the upper holder (11), and along the circumferential direction of the annular holder, the needle holder The included angle between the structure (3) and the locking assembly (2) is 90 degrees.