Puncture clamping support

Abstract

The utility model provides a puncture clamping support which comprises a supporting assembly, a clamping assembly and an angle indicating assembly. The supporting assembly comprises a bottom plate and at least one universal supporting rod arranged on the bottom plate. The clamping assembly is fixed to the tail end of each universal supporting rod and used for fixedly clamping the puncture needle. The angle indicating assembly is arranged on the clamping assembly and comprises a scale part with angle scales and an indicating part matched with the scale part. Wherein one of the scale part and the indicating part is fixed on the clamping assembly, so that the scale part and the indicating part can deflect along with the movement of the puncture needle in the direction of the indicated angle; and the other one of the scale part and the indicating part is constructed to be kept still in the direction of the indicated angle under the action of gravity. According to the technical scheme, based on the multiple degrees of freedom of the universal supporting rod and the angle indication function of the angle indication assembly, angle adjustment in multiple directions can be carried out according to needs, the adjusted angle can be indicated, and therefore puncture accuracy is achieved.

Description

Technical Field

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

[0002] Current treatment methods for tumors generally include complete surgical resection; targeted chemotherapy and radiotherapy; and image-guided minimally invasive treatments such as microwave ablation, radiofrequency ablation, and cryoablation. Among these, minimally invasive ablation surgery is a tumor ablation procedure that has been widely used in recent years. It involves percutaneous puncture to physically ablate the lesion at a designated location using a scalpel, resulting in minimal trauma and good treatment outcomes.

[0003] The challenge of percutaneous ablation needle (PAB) surgery lies in guiding the needle along the planned path to the lesion. The success of the procedure often depends on the surgeon's experience and skill. Traditional PAB procedures typically involve multiple scans and adjustments, including imaging, pre-puncture, re-scanning, and the actual puncture. Furthermore, there is no angle reference during the procedure, and the needle may shift position during scanning, significantly complicating the surgeon's operation. Therefore, a stent is needed to hold the PAB and provide angle guidance, assisting the surgeon and improving efficiency. Current PAB stents only provide support and lack angle guidance functionality. Utility Model Content

[0004] To address the problem that existing puncture needle holders cannot provide angle indication for puncture surgery, this invention proposes a puncture clamping holder.

[0005] The present invention provides a puncture clamping support, which includes:

[0006] A support assembly, comprising a base plate and at least one universal strut disposed on the base plate;

[0007] A clamping assembly, fixed to the end of each of the universal joints, the clamping assembly being configured to securely clamp the puncture needle; and

[0008] An angle indicating component is disposed on the clamping component, the angle indicating component including a scale portion having angle graduations and an indicating portion cooperating with the scale portion;

[0009] One of the scale portion and the indicator portion is fixed to the clamping assembly so that it can deflect in the indicated angular direction as the puncture needle moves; the other of the scale portion and the indicator portion is configured to remain stationary in the indicated angular direction by gravity.

[0010] In one embodiment, the scale portion is configured as a scale plate fixed to the clamping assembly;

[0011] The indicator is constructed as a pointer hinged to the dial surface, and the pointer is constructed to be held vertically by gravity, pointing in the opposite direction to gravity.

[0012] In one embodiment, the scale portion is configured as a scale disk, the center of the scale disk is hinged to the clamping assembly, and the scale disk is configured such that the mass of the center of the scale disk is uneven on both sides, and the angle scale is configured on the side with smaller mass.

[0013] The indicator is configured as a pointer fixed to the clamping assembly; or, the indicator is the puncture needle clamped to the clamping assembly in a direction parallel to the radial direction of the dial.

[0014] In one embodiment, a cutout is constructed in the first region of the dial where the angle scale is located on one side of the center of the dial surface, so that the mass of the center of the dial surface is uneven relative to the two side regions; and / or

[0015] A counterweight is provided on a second region on the other side of the center of the dial, opposite to the first region, so that the mass of the two regions opposite the center of the dial is uneven.

[0016] In one embodiment, the scale portion is configured as a scale ring sleeved on the clamping assembly, and the indicator portion is configured as a bubble indicator adjacent to the scale ring in the axial direction of the scale ring.

[0017] In one embodiment, the scale portion is configured as a hemispherical container, the angle scale is configured as latitude and longitude scales located on the spherical surface of the hemispherical container, and the indicator portion is configured as bubbles formed in the liquid inside the hemispherical container.

[0018] In one embodiment, the clamping assembly includes:

[0019] The clamping body has one end connected to the universal support rod and the other end constructed with a hook for the puncture needle to pass through; and

[0020] A clamping sleeve is fitted onto the clamping body. The first end of the clamping sleeve can press against the inner wall of the hook to clamp the puncture needle together.

[0021] The clamping sleeve is threadedly engaged with the clamping body, or an elastic element is engaged between the clamping sleeve and the clamping body, so as to maintain the clamping of the puncture needle under the action of the threaded structure or elastic force.

[0022] In one embodiment, the elastic element is sleeved on the clamping body and located inside the clamping sleeve, with one end of the elastic element abutting against the inner wall of the first end of the clamping sleeve and the other end abutting against a positioning shoulder constructed on the outer peripheral surface of the clamping body.

[0023] In one embodiment, a connecting groove for accommodating the end of the universal support rod is formed on the end face of one end of the clamping body. A portion of the groove on one side is separated from the main body of the connecting groove to form a spring piece. A locking port communicating with the interior of the main body of the connecting groove is formed on the spring piece.

[0024] Wherein, after the end of the universal support rod is fitted into the connecting groove, the edge portion of the end of the universal support rod can be engaged with the locking port.

[0025] In one embodiment, the end of the universal support rod is connected to the base plate via a connecting member, the connecting member including a connecting seat fixed to the end of the universal support rod;

[0026] The connecting seat is fixedly connected to the base plate by screws passing through the base plate; or

[0027] The bottom of the connector has a limiting part with an increased radial dimension. An eccentric knob corresponding to the limiting part is hinged to the outer wall of the connector. The eccentric knob is configured to change the width of the gap between itself and the limiting part by rotation. The minimum width of the gap is less than the thickness of the base plate. The edge of the base plate has a slot for the portion of the connector corresponding to the gap to be engaged.

[0028] The above-mentioned technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of this utility model can be achieved.

[0029] The puncture clamping stent provided by this utility model has at least the following advantages compared with the prior art:

[0030] This utility model discloses a puncture clamping bracket that, while providing support for the puncture needle, utilizes the multi-degree-of-freedom of the universal support rod and the angle indication function of the angle indicator component to allow for angle adjustment in multiple directions as needed and to indicate the adjusted angle, thereby achieving puncture accuracy. Attached Figure Description

[0031] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein:

[0032] Figure 1 This diagram shows the overall structure of the puncture clamping bracket of this utility model;

[0033] Figure 2 A schematic diagram of the assembly structure of the clamping component of the puncture clamping bracket and the first type of angle indicating component is shown.

[0034] Figure 3 A schematic diagram of the assembly structure of the clamping component of the puncture clamping bracket and the second type of angle indicating component is shown.

[0035] Figure 4 A schematic diagram of the assembly structure of the clamping component and the third angle indicator component of the puncture clamping bracket is shown.

[0036] Figure 5 A schematic diagram of the assembly structure of the clamping component and the fourth angle indicator component of the puncture clamping bracket is shown.

[0037] Figure 6 The image shows a cross-sectional view of one type of clamping assembly of a puncture clamping bracket that employs an elastic element;

[0038] Figure 7 A schematic diagram of the structure at the connecting component of the puncture clamping stent is shown;

[0039] Figure 8 A schematic diagram of the assembly structure of the clamping component of the puncture clamping bracket and the fifth angle indicator component is shown.

[0040] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0041] Figure label:

[0042] 10-Support assembly, 101-Base plate, 1011-Bayonet, 102-Universal support rod, 20-Clamping assembly, 201-Clamping body, 2011-Connecting groove, 2012-Spring part, 2013-Locking port, 2014-Positioning shoulder, 202-Clamping sleeve, 203-Hook, 204-Elastic element, 30-Angle indicating assembly, 301-Scale part, 3011-Hollow part, 302-Indicator part, 303-Angle scale, 40-Punch needle, 50-Connecting component, 501-Connecting seat, 5011-Limiting part, 502-Screw, 503-Eccentric knob. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings.

[0044] An embodiment of this utility model provides a puncture clamping bracket, which includes a support assembly 10, a clamping assembly 20, and an angle indicating assembly 30. The support assembly 10 includes a base plate 101 and at least one universal support rod 102 disposed on the base plate 101; the clamping assembly 20 is fixed to the end of each universal support rod 102, and the clamping assembly 20 is configured to clamp the puncture needle 40; the angle indicating assembly 30 is disposed on the clamping assembly 20, and the angle indicating assembly 30 includes a scale portion 301 with angle graduations 303 and an indicating portion 302 that cooperates with the scale portion 301.

[0045] One of the scale portion 301 and the indicator portion 302 is fixed to the clamping assembly 20 so that it can deflect in the indicated angular direction as the puncture needle 40 moves; the other of the scale portion 301 and the indicator portion 302 is configured to remain stationary in the indicated angular direction by gravity.

[0046] Specifically, as shown in the attached diagram. Figure 1 As shown, the puncture clamping bracket mainly consists of three parts: a support assembly 10, a clamping assembly 20, and an angle indicating assembly 30. The support assembly 10, serving as the structural foundation, provides support and includes a base plate 101 and a universal support rod 102. One end of the universal support rod 102 is fixed to the edge of the base plate 101. The universal support rod 102 is composed of multiple universal joints connected together, as shown in the attached figure. Figure 1 As shown, the specific structure of the universal support rod 102 is not the main improvement of this utility model, so existing structures can be referenced, such as the existing universal bamboo joint rod (tube). The clamping assembly 20 is fixed to the end of the universal support rod 102 and is used to clamp the puncture needle 40. The angle indicating assembly 30 is disposed on the clamping assembly 20 and includes a scale portion 301 and an indicating portion 302. One of the scale portion 301 and the indicating portion 302 is fixedly connected to the clamping assembly 20 so that it can move synchronously with the puncture needle 40, while the other of the scale portion 301 and the indicating portion 302 is movably connected to the clamping assembly 20 and remains stationary in the indicated angle direction based on its own gravity.

[0047] In use, the base plate 101 is placed under the patient's body, for example, using the patient's weight to keep the support component 10 fixed. To avoid the base plate 101 affecting the patient's comfort, its thickness is minimized, and it is made of an elastic material or structure, such as plastic. The universal support rod 102 extends from the side of the patient's body upwards, and the puncture needle 40 is clamped to the top of the universal support rod 102 by the clamping component 20. When the operator adjusts the angle of the puncture needle 40, based on the multi-directional degrees of freedom of the universal support rod 102, the puncture needle 40 drives the clamping component 20 to move. Taking the scale portion 301 fixed to the clamping component 20 as an example, the scale portion 301 will also move. The movement of the scale portion 301 will produce angle changes (possibly in multiple directions), and these angle changes include at least the angle changes in the angle direction indicated by the angle scale 303 on the scale portion 301. In the angular direction indicated by the angle scale 303, the indicator 302, which is movable relative to the clamping assembly 20, remains stationary under the action of gravity (similar to the principle of a roly-poly toy), thereby generating relative movement with the scale 301, thus indicating the current angle of the puncture needle 40.

[0048] In addition, as needed, the mounting direction of the scale section 301 on the clamping assembly 20 or the overall placement direction of the puncture clamping bracket relative to the patient can be adjusted, thereby adjusting the angle direction shown by the angle scale 303 of the scale section 301 to the direction where the angle observation is actually required.

[0049] Therefore, based on the puncture clamping bracket proposed in this utility model, while providing support for the puncture needle 40, the angle indication function of the multi-degree-of-freedom angle indicator component 30 of the universal support rod 102 can be used to adjust the angle in multiple directions as needed and indicate the adjusted angle, thereby achieving the accuracy of puncture.

[0050] In one embodiment, the scale portion 301 is configured as a scale fixed to the clamping assembly 20; the indicator portion 302 is configured as a pointer hinged to the surface of the scale, and the pointer is configured to be held vertically by gravity and point in the opposite direction to gravity.

[0051] Specifically, this embodiment presents a first implementation of the angle indicating component 30, as shown in the accompanying drawings. Figure 2As shown, the scale portion 301 is constructed as a disc-shaped scale, with angle scales 303 provided on its surface. The pointer portion 302, constructed as a pointer, is hinged to the surface of the scale. By adding weight to the bottom of the pointer, the tip of the pointer can be made to consistently point in the direction opposite to gravity in the vertical direction. Specifically, when the scale surface is parallel to the vertical direction, the pointer consistently points in the vertically upward direction; when the scale portion 301 undergoes multiple directional composite movements with the puncture needle 40, even if the scale surface is tilted relative to the vertical direction, the projection of the pointer's direction in the vertical direction still consistently points in the vertically upward direction.

[0052] In one embodiment, the scale portion 301 is configured as a scale, the center of the scale surface is hinged to the clamping assembly 20, the scale surface is configured such that the mass of the center of the scale surface is uneven on both sides, and the angle scale 303 is configured on the side with smaller mass; the indicator portion 302 is configured as a pointer fixed to the clamping assembly 20; or, the indicator portion 302 is a puncture needle 40 clamped in a direction parallel to the radial direction of the scale.

[0053] Specifically, this embodiment proposes a second implementation of the angle indicating component 30, as shown in the attached figure. Figure 3 As shown, the scale part 301 is constructed as a disc-shaped scale, with the center of the scale surface hinged to the end face of the clamping assembly 20. Angle scales 303 are provided on one side of the center of the scale surface. During the manufacture of the scale, the mass of the area where the angle scales 303 are located and the area on the opposite side are uneven. Therefore, under the action of gravity, the scale can remain stationary in the plane corresponding to its scale surface (consistent with the preceding and following text, "stationary" here does not simply mean completely stationary, but includes returning to the initial state under the action of gravity after movement, i.e., the final state is consistent with the initial state). The indicator 302 is configured as a pointer, which is fixed to the clamping assembly 20 and moves synchronously with the puncture needle 40. Alternatively, more preferably, the structure is such that when the puncture needle 40 is clamped on the clamping assembly 20, the direction of the puncture needle 40 is along the radial direction of the dial and at least part of the needle body corresponds to the dial surface. This allows the puncture needle 40 to be directly used as the indicator 302, integrating the function of the indicator 302 into the puncture needle 40, thus simplifying the structure, as shown in the attached figure. Figure 3 As shown.

[0054] Optionally, based on the accompanying drawings Figure 3The second type of angle indicating component 30 shown can achieve uneven mass distribution on the dial by constructing a hollow structure in a portion of the dial. Specifically, a hollow portion 3011 is constructed in the first area on one side of the dial where the angle scale 303 is located, creating an uneven mass distribution between the center and the two sides of the dial. This results in the area where the angle scale 303 is located having a smaller mass and remaining at the top under gravity. Alternatively, a counterweight can be used to create the uneven mass distribution between the center and the two sides of the dial. Specifically, a counterweight (not shown in the figures) is provided in the second area on the other side of the dial's center, which is an additional counterweight in the second area opposite to the first area where the angle scale 303 is located. Either of these two methods—using the hollow portion 3011 or the counterweight—can be used, or a combination of both can be applied simultaneously. In one embodiment, the scale portion 301 is constructed as a scale ring fitted onto the clamping component 20, and the indicating portion 302 is constructed as a bubble indicator adjacent to the scale ring along its axial direction.

[0055] Specifically, this embodiment proposes a third implementation of the angle indicating component 30, as shown in the attached figure. Figure 4 As shown, the scale part 301 is constructed as a ring structure, that is, a scale ring with angle scale 303 on the outer peripheral surface. The scale ring is sleeved on the clamping assembly 20. A bubble indicator is provided on the clamping assembly 20 as an indicator part 302 at a position adjacent to the scale ring in the axial direction. The bubble indicator is also in a ring structure. It is sealed with liquid inside. A bubble is formed in the liquid. Based on the difference in gravity between the gas forming the bubble and the liquid, the bubble is always located at the top of the bubble indicator.

[0056] In one embodiment, the scale portion 301 is configured as a hemispherical container, the angle scale 303 is configured as a latitude and longitude scale located on the spherical surface of the hemispherical container, and the indicator portion 302 is configured as a bubble formed in the liquid inside the hemispherical container.

[0057] Specifically, this embodiment proposes a fourth implementation of the angle indicating component 30, as shown in the attached figure. Figure 5 As shown, the scale portion 301 is constructed as a hemispherical shape sealed with liquid, and the angle scale 303 is arranged on its spherical surface in the form of latitude and longitude lines. The air bubbles in the liquid serve as the indicator portion 302. The fourth embodiment is based on the same principle as the third embodiment, which is based on the difference in gravity between the gas and the liquid that form the air bubbles, so that the direction represented by the air bubbles is always located at the top. However, in this embodiment, the spherical structure combined with the angle scale 303 in the form of latitude and longitude lines can indicate angles in multiple directions.

[0058] In one embodiment, as shown in the attached figure Figure 8As shown, the fifth embodiment of the angle indicator component 30 can directly use an electronic angle ruler, which can directly display the angles in multiple directions in a digital display manner. The technical concept of this angle indicator component 30 is different from the aforementioned embodiments of this application. The specific principle and structure can be referred to the prior art, such as an electronic angle ruler based on a gyroscope.

[0059] In one embodiment, the clamping assembly 20 includes a clamping body 201 and a clamping sleeve 202. One end of the clamping body 201 is connected to a universal support rod 102, and the other end is provided with a hook 203 for the puncture needle 40 to pass through. The clamping sleeve 202 is sleeved on the clamping body 201, and the first end of the clamping sleeve 202 can press against the inner wall of the hook 203 to jointly clamp the puncture needle 40. The clamping sleeve 202 is threadedly engaged with the clamping body 201, or an elastic element 204 is engaged between the clamping sleeve 202 and the clamping body 201 to maintain the clamping of the puncture needle 40 under the action of the threaded structure or elastic force.

[0060] Specifically, this embodiment mainly focuses on the structural design of the clamping assembly 20, as shown in the accompanying drawings. Figures 3 to 6 The clamping assembly 20 mainly includes a cylindrical clamping body 201 and a clamping sleeve 202 fitted onto the clamping body 201. Both ends of the clamping body 201 are exposed beyond the clamping sleeve 202. One end is connected to a universal support rod 102, and the other end has a hook 203. The hook 203 has a through-hole for the puncture needle 40 to pass through. The clamping sleeve 202, through its threaded engagement with the clamping body 201, rotates to bring one end into contact with the puncture needle 40 passing through the hook 203, thereby clamping the puncture needle 40 against the inner wall of the hook 203. Furthermore, refer to the attached drawings. Figure 6 Alternatively, the threaded structure can be replaced by an elastic element 204 between the clamping sleeve 202 and the clamping body 201, which uses elastic force to force one end of the clamping sleeve 202 to press the puncture needle 40 against the inner wall of the hook 203.

[0061] In one embodiment, the elastic element 204 is sleeved on the clamping body 201 and located inside the clamping sleeve 202. One end of the elastic element 204 abuts against the inner wall of the first end of the clamping sleeve 202, and the other end abuts against the positioning shoulder 2014 constructed on the outer peripheral surface of the clamping body 201.

[0062] Specifically, as shown in the attached diagram. Figure 6 As shown, the elastic element 204 can be a spring. The elastic element 204 is disposed in the annular space between the clamping body 201 and the clamping sleeve 202. The elastic element 204 is provided with a pre-tightening force, that is, a pre-compression amount. Its two ends abut against the inner wall of the end of the clamping sleeve 202 and the positioning shoulder 2014 of the clamping body 201, respectively, to achieve axial compression of the clamping sleeve 202.

[0063] In one embodiment, a connecting groove 2011 for accommodating the end of the universal support rod 102 is formed on one end face of the clamping body 201. A portion of the groove on one side of the connecting groove 2011 is separated from the main body of the connecting groove 2011 to form a spring piece 2012. A locking port 2013 communicating with the interior of the main body of the connecting groove 2011 is formed on the spring piece 2012. When the end of the universal support rod 102 is fitted into the connecting groove 2011, the edge portion of the end of the universal support rod 102 can be engaged in the locking port 2013.

[0064] Specifically, as shown in the attached diagram. Figure 2 As shown, the end of the clamping body 201 is equipped with a quick-release connection structure for connecting the end of the universal support rod 102, including a connecting groove 2011 constructed on the end face of the clamping body 201. The overall shape and size of the connecting groove 2011 are consistent with the end of the universal support rod 102. The connecting groove 2011 is composed of two separate parts: a main body and a spring piece 2012 at the edge of the main body. The spring piece 2012 is obtained by dividing the edge of the main body of the connecting groove 2011. The root of the spring piece 2012 is connected to the main body of the connecting groove 2011, and the spring piece 2012 itself can be offset outward away from the main body of the connecting groove 2011 under the action of external force.

[0065] In use, first pry the spring piece 2012 away from the main body of the connecting groove 2011 so that the offset spring piece 2012 can fully open the connecting groove 2011. Then, insert the end of the universal support rod 102 into the connecting groove 2011 and release the spring piece 2012. The spring piece 2012 will reset and lock onto the edge of the end of the universal support rod 102, so that the edge of the end of the universal support rod 102 is locked in the locking hole 2013 of the spring piece 2012, thereby achieving connection and preventing detachment with the universal support rod 102. To separate the universal support rod 102, pry the spring piece 2012 again so that the edge of the end of the universal support rod 102 disengages from the locking hole 2013 of the spring piece 2012.

[0066] In one embodiment, the end of the universal support rod 102 is connected to the base plate 101 via a connecting member 50, which includes a connecting seat 501 fixed to the end of the universal support rod 102.

[0067] The connecting seat 501 is fixedly connected to the base plate 101 by a screw 502 passing through the base plate 101; or, the bottom of the connecting seat 501 is constructed with a limiting part 5011 with an increased radial dimension, and an eccentric knob 503 corresponding to the limiting part 5011 is hinged on the outer wall of the connecting seat 501. The eccentric knob 503 is constructed to change the width of the gap between itself and the limiting part 5011 by rotation. The minimum width of the gap is less than the thickness of the base plate 101, and the edge of the base plate 101 is constructed with a slot 1011 for the part of the connecting seat 501 corresponding to the gap to be inserted.

[0068] Specifically, as shown in the attached diagram. Figure 7 As shown, the end of the universal support rod 102 is fixed to the base plate 101 by a connecting member 50. The connecting member 50 includes two optional structures. In the first structure, the connecting member 50 includes a connecting seat 501. The top of the connecting seat 501 can be connected to the end of the universal support rod 102 by snap-fit ​​or threaded connection. The bottom of the connecting seat 501 corresponds to the through hole on the base plate 101. The screw 502 passing through the through hole is threaded to the bottom of the connecting seat 501 to realize the connection between the base plate 101 and the universal support rod 102. In the second structure, the connecting member 50 includes a connecting seat 501. The bottom of the connecting seat 501 is provided with a limiting part 5011 with an increased radial dimension. Above the limiting part 5011, there is an eccentric knob 503 provided on the outer wall of the connecting seat 501. The connecting seat 501 can be inserted into the base plate 101 from the side through a slot 1011. At this time, the limiting part 5011 is located below the base plate 101 and the eccentric knob 503 is above the base plate 101. By rotating the eccentric knob 503, the width of the gap between the eccentric knob 503 and the limiting part 5011 is continuously reduced. When the width is reduced to less than the thickness of the base plate 101, the eccentric knob 503 and the limiting part 5011 can clamp the base plate 101 together, realizing the connection between the base plate 101 and the universal support rod 102.

[0069] In one embodiment, multiple universal support rods 102 can be simultaneously provided on the base plate 101, thereby cooperating with multiple clamping components 20 to clamp multiple puncture needles 40 one by one, and angle indicating components 30 are provided one by one. Among them, the connection methods between different universal support rods 102 and the base plate 101 can be different, that is, different connecting members 50 can be used; the clamping components 20 and angle indicating components 30 corresponding to different universal support rods 102 can also adopt different structures.

[0070] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0071] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A puncture clamping stent, characterized in that, include: A support assembly, comprising a base plate and at least one universal strut disposed on the base plate; A clamping assembly, which is fixed to the end of each of the universal joints, is configured to hold the puncture needle in place. as well as An angle indicating component is disposed on the clamping component, the angle indicating component including a scale portion having angle graduations and an indicating portion cooperating with the scale portion; One of the scale portion and the indicator portion is fixed to the clamping assembly so that it can deflect in the indicated angular direction as the puncture needle moves; the other of the scale portion and the indicator portion is configured to remain stationary in the indicated angular direction by gravity.

2. The puncture clamping stent according to claim 1, characterized in that, The scale portion is configured as a scale plate fixed to the clamping assembly; The indicator is constructed as a pointer hinged to the dial surface, and the pointer is constructed to be held vertically by gravity, pointing in the opposite direction to gravity.

3. The puncture clamping stent according to claim 1, characterized in that, The scale portion is constructed as a scale disk, and the center of the scale disk is hinged to the clamping assembly. The scale disk is constructed such that the mass of the center of the scale disk is uneven on both sides, and the angle scale is constructed on the side with smaller mass. The indicator is configured as a pointer fixed to the clamping assembly; or, the indicator is the puncture needle clamped to the clamping assembly in a direction parallel to the radial direction of the dial.

4. The puncture clamping stent according to claim 3, characterized in that, The dial has a cutout in the first region where the angle scale is located on one side of its center, so that the mass of the center of the dial is uneven relative to the two sides; and / or A counterweight is provided on a second region on the other side of the center of the dial, opposite to the first region, so that the mass of the two regions opposite the center of the dial is uneven.

5. The puncture clamping stent according to claim 1, characterized in that, The scale portion is configured as a scale ring sleeved on the clamping assembly, and the indicator portion is configured as a bubble indicator adjacent to the scale ring in the axial direction of the scale ring.

6. The puncture clamping stent according to claim 1, characterized in that, The scale portion is constructed as a hemispherical container, the angle scale is constructed as latitude and longitude scales located on the spherical surface of the hemispherical container, and the indicator portion is constructed as bubbles formed in the liquid inside the hemispherical container.

7. The puncture clamping stent according to claim 1, characterized in that, The clamping assembly includes: The clamping body has one end connected to the universal support rod and the other end constructed with a hook for the puncture needle to pass through; and A clamping sleeve is fitted onto the clamping body. The first end of the clamping sleeve can press against the inner wall of the hook to clamp the puncture needle together. The clamping sleeve is threadedly engaged with the clamping body, or an elastic element is engaged between the clamping sleeve and the clamping body, so as to maintain the clamping of the puncture needle under the action of the threaded structure or elastic force.

8. The puncture clamping stent according to claim 7, characterized in that, The elastic element is sleeved on the clamping body and located inside the clamping sleeve. One end of the elastic element abuts against the inner wall of the first end of the clamping sleeve, and the other end abuts against the positioning shoulder constructed on the outer peripheral surface of the clamping body.

9. The puncture clamping stent according to claim 7, characterized in that, The end face of one end of the clamping body is provided with a connecting groove for accommodating the end of the universal support rod. A portion of the groove on one side is separated from the main body of the connecting groove to form a spring piece. The spring piece is provided with a locking port that communicates with the interior of the main body of the connecting groove. Wherein, after the end of the universal support rod is fitted into the connecting groove, the edge portion of the end of the universal support rod can be engaged with the locking port.

10. The puncture clamping stent according to claim 1, characterized in that, The end of the universal support rod is connected to the base plate via a connecting member, the connecting member including a connecting seat fixed to the end of the universal support rod; The connecting seat is fixedly connected to the base plate by screws passing through the base plate; or The bottom of the connector has a limiting part with an increased radial dimension. An eccentric knob corresponding to the limiting part is hinged to the outer wall of the connector. The eccentric knob is configured to change the width of the gap between itself and the limiting part by rotation. The minimum width of the gap is less than the thickness of the base plate. The edge of the base plate has a slot for the portion of the connector corresponding to the gap to be engaged.

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