CN113208692A - Method for manufacturing bracket - Google Patents

Abstract

Translated fromChinese

本发明公开了一种支架的制作方法，包括以下步骤：成型，将主架体的一端制成闭环结构，将闭环结构穿设至连接件上，并将主架体的另一端收束至丝杆的远端的收束件内，然后进行热定型处理；装配，将控制旋钮安装至调控组件，将丝杆的近端连接在控制旋钮上，使控制旋钮可以对丝杆进行推/拉操作；焊接，将连接件焊接至调控组件。如此设置，通过操作控制旋钮对丝杆进行推拉，丝杆牵动主架体的远端进行移动，从而使主架体进行缩放，来适配不同尺寸的血管，通用性强，不用更换不同的支架，省时省力。

The invention discloses a method for manufacturing a stent, which comprises the following steps: forming, forming one end of a main frame into a closed-loop structure, piercing the closed-loop structure on a connecting piece, and constricting the other end of the main frame to a wire The distal end of the rod is placed in the retractor, and then heat-set; assembly, the control knob is installed to the control assembly, and the proximal end of the screw rod is connected to the control knob, so that the control knob can push/pull the screw rod. ; Welding to weld the connector to the control assembly. In this way, the screw rod is pushed and pulled by operating the control knob, and the screw rod drives the distal end of the main frame body to move, so that the main frame body can be scaled to adapt to blood vessels of different sizes, and the versatility is strong, and there is no need to replace different stents. ,save time and energy.

Description

Method for manufacturing bracket

Technical Field

The invention relates to the technical field of medical instruments, in particular to a method for manufacturing a bracket.

Background

Stroke is the most common life-threatening intracranial vascular disease, including ischemic or hemorrhagic cerebrovascular disease that temporarily or permanently affects brain regions or develops lesions. Thrombosis is a more common ischemic stroke. Stent embolectomy is a neuro-interventional procedure for ischemic stroke, in which an instrument is implanted into a patient's artery at the location of a thrombus by X-ray fluoroscopy through a set of catheters, and the thrombus is removed from the patient's artery.

At present, the thrombus taking support generally adopted usually utilizes the self-expansion function of the support to take thrombus, the thrombus taking support generally has larger volume, various specifications with different consumption on blood vessels with different sizes are consumed, the universality is poor, and the time and the labor are consumed for replacing different supports.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a manufacturing method of the stent, which pushes and pulls the screw rod through the control knob of the regulating and controlling assembly, so that the screw rod drives the main frame body connected to the screw rod to zoom, the universality of the stent is enhanced, and the stent is suitable for blood vessels with different sizes to carry out thrombus removal.

According to the embodiment of the invention, the manufacturing method of the bracket comprises the following steps:

forming, namely manufacturing one end of the main frame body into a closed loop structure, penetrating the closed loop structure onto the connecting piece, bundling the other end of the main frame body into a bundling piece at the far end of the screw rod, and then carrying out heat setting treatment;

assembling, namely installing a control knob to the regulating and controlling assembly, and connecting the near end of the screw rod to the control knob so that the control knob can push/pull the screw rod;

welding the connector to the conditioning assembly.

The manufacturing method of the bracket according to the embodiment of the invention has at least the following beneficial effects: the utility model discloses a thermal setting machine, including the body frame body, the body frame body is connected with the control knob of regulation and control subassembly, the far end of the body frame body with netted skeleton is received and is restrainted in the piece is restrainted in the receipts of lead screw, wear to establish the closed loop structure of near-end on the connecting piece and carry out the heat setting and handle, the other end of lead screw is connected on the control knob of regulation and control subassembly, weld connecting piece and regulation and control subassembly, carry out the push-and-pull to the lead screw through operation control knob, the lead screw drives the far end of the body frame body and removes, thereby make the body frame body zoom, come the not unidimensional blood vessel of adaptation, therefore, the commonality is strong, need not change different supports, time saving and labor.

According to some embodiments of the invention, in the forming step, the connecting member is provided with a plurality of through holes, and two ends of each closed loop structure are respectively distributed in two through holes, or each closed loop structure is separately distributed in each through hole.

According to some embodiments of the present invention, in the forming step, the main frame body is a mesh-shaped framework structure formed by weaving, two ends of each closed loop structure are respectively distributed in the two through holes, and the weaving step is as follows:

s1, more than one wire is threaded through the through hole of the connecting piece and is threaded out through the other through hole to form the closed loop structure;

and S2, weaving the silk materials penetrating through the two through holes to form a mesh skeleton structure.

According to some embodiments of the invention, in the forming step, the main frame body is a mesh framework structure formed by weaving, and each closed loop structure is separately distributed in each through hole, and the weaving step is as follows:

s1, passing more than one wire through the through hole of the connecting piece to form the closed loop structure;

and S2, weaving the silk materials penetrating through the through holes to form a mesh skeleton structure.

According to some embodiments of the invention, a plurality of said through holes are circumferentially equispaced on the side wall of said connector.

According to some embodiments of the invention, a plurality of the through holes are vertically or obliquely arranged on the end surface of the connecting piece.

According to some embodiments of the invention, in the forming step, the connecting member includes a tooth fastening portion and a fixing portion, the proximal end of the main frame body is provided with a plurality of closed loop structures, and a gap for accommodating the closed loop structures is formed between the tooth fastening portion and the fixing portion.

According to some embodiments of the invention, in the forming step, the main frame body is formed by cutting, and the specific steps are as follows:

s1, cutting or carving the raw material according to the preset grains;

s2, taking out the waste material after cutting or carving to form a cutting body or a carving body with a plurality of rods;

s3, placing the cutting body or the carving body into a prefabricated grinding tool, and expanding or extruding the cutting body or the carving body to form a reticular framework structure with one end open and the other end closed;

s4, carrying out heat setting on the cutting body or the carving body of the latticed framework structure to form the main frame body;

s5, the open loop structure of the main frame body is bundled into the bundling piece, and the closed loop structure is in meshed connection through the tooth buckle part and the fixing part.

According to some embodiments of the invention, the tooth fastening portion is provided as a bent tooth, the fixing portion is provided as a stepped surface, and the gap is formed between the bent tooth and the stepped surface.

According to some embodiments of the invention, the welding step is further followed by an engraving step:

and engraving a scale value on a handle of the regulating and controlling assembly for confirming the deformation amount of the main frame body.

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

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a stent according to a first embodiment of the present invention;

FIG. 2 is an enlarged, fragmentary view of the stent of the first embodiment shown in FIG. 1;

FIG. 3 is a cross-sectional view of the first embodiment of the connection shown in FIG. 1;

FIG. 4 is a schematic structural view of a stent according to a second embodiment of the present invention;

FIG. 5 is an enlarged, fragmentary view of the bracket of the second embodiment shown in FIG. 4;

FIG. 6 is a cross-sectional view of the second embodiment of the connector shown in FIG. 4;

FIG. 7 is a schematic structural view of a connecting member according to a third embodiment of the present invention;

fig. 8 is a schematic structural view of a connector according to a fourth embodiment of the present invention.

Amain frame body 100, a closedloop structure 110;

the adjusting and controllingcomponent 200, thecontrol knob 210, thehandle 220, thescale value 221, the connectingpiece 230, the throughhole 231, the tooth fasteningpart 232 and thefixing part 233;

ascrew rod 300 and abinding piece 310.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is more than one, and the meaning of more than, less than, more than, etc. is understood as excluding the present number, and the meaning of more than, less than, etc. is understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 3, a method for manufacturing a stent according to an embodiment of the present invention includes the steps of:

forming, namely, manufacturing one end of themain frame body 100 into a closedloop structure 110, penetrating the closedloop structure 110 onto the connectingpiece 230, bundling the other end of themain frame body 100 into abundling piece 310 at the far end of thescrew rod 300, and then performing heat setting treatment;

assembling, namely installing acontrol knob 210 to the regulating and controllingassembly 200, and connecting the proximal end of thescrew rod 300 to thecontrol knob 210, so that thecontrol knob 210 can push/pull thescrew rod 300;

welding, the connectingmember 230 is welded to theconditioning assembly 200.

The body ofbody 100 sets up to netted skeleton texture, as shown in fig. 1, upwards promotelead screw 300 whencontrol knob 210,lead screw 300 upward movement, the distal end upward movement of thebody 100 is held in the distal end tractive oflead screw 300, the body of thebody 100 is held to the direction shrink oflead screw 300 to the drive, downwardsdrive control knob 210, then leadscrew 300 downstream, the body ofbody 100 is held to the direction of keeping away fromlead screw 300 and is enlargied, thereby can change the shape and the size ofbody 100, thereby the adaptation is got in the blood vessel of different size of a dimension and is tied.

The manufacturing method of the bracket according to the embodiment of the invention has at least the following beneficial effects: the far end of themain frame body 100 with the net-shaped framework is contracted in the contractingpart 310 of thescrew rod 300, the closedloop structure 110 at the near end is arranged on the connectingpiece 230 in a penetrating mode to be subjected to heat setting treatment, the other end of thescrew rod 300 is connected to thecontrol knob 210 of the regulating and controllingassembly 200, the connectingpiece 230 and the regulating and controllingassembly 200 are welded, thescrew rod 300 is pushed and pulled through theoperation control knob 230, the far end of themain frame body 100 is dragged by thescrew rod 300 to move, therefore, themain frame body 100 is zoomed, the blood vessels of different sizes are adapted, the universality is strong, different supports do not need to be replaced, time and labor are saved.

According to some embodiments of the present invention, in the forming step, referring to fig. 2, 3 and 6, a plurality of throughholes 231 are opened on the connectingmember 230, and a plurality of closedloop structures 110 are provided at the proximal end of themain frame 100, wherein, as shown in fig. 2 and 3, two ends of each closedloop structure 110 respectively penetrate through two throughholes 231, and two bundles of wires after penetrating through the two throughholes 231 weave the structure of themain frame 100; or as shown in fig. 6, each closed-loop structure 110 is separately distributed in each throughhole 231, and the closed-loop structures 110 are arranged in such a way, so that the operation of bundling or welding themain frame 100 at the connectingmember 230 can be omitted, time and labor are saved, and the production is facilitated, and meanwhile, the closed-loop structures 110 can move in the throughholes 231 to a small extent, so that the flexibility of themain frame 100 during the scaling operation is facilitated.

According to some embodiments of the present invention, in the forming step, as shown in fig. 1 to 3, themain frame body 100 is configured as a mesh-like framework structure formed by weaving, wherein two ends of each closedloop structure 110 are respectively penetrated by two throughholes 231, and themain frame body 100 is woven in the following steps:

s1, passing more than one wire through the throughhole 231 of the connectingpiece 230 and out through the other throughhole 231 to form the closedloop structure 110;

s2, weaving the silk materials which penetrate out of the two throughholes 231 to form a mesh skeleton structure.

According to some embodiments of the present invention, in the above-mentioned forming step, as shown in fig. 6, themain frame body 100 is configured as a mesh-like skeleton structure formed by weaving, each closed-loop structure 110 is individually distributed in each throughhole 231, and the specific weaving step of themain frame body 100 is as follows:

s1, passing more than one wire through the throughhole 231 of the connectingpiece 230 to form aclosed loop structure 110;

s2, weaving the silk material which penetrates out of the throughhole 231 to form a mesh skeleton structure.

The two different weaving modes can be adopted for weaving according to the actual production condition.

In the above embodiment, referring to fig. 2 and 3, a plurality of throughholes 231 are uniformly distributed on the sidewall of theconnection member 230 along the circumference of theconnection member 230; or referring to fig. 7 and 8, the throughholes 231 are uniformly distributed along the circumference of the end surface of theconnection member 230, and are opened as vertical or inclined throughholes 231.

According to some embodiments of the present invention, in the forming step, referring to fig. 4 and 5, the connectingmember 230 includes thetooth fastening portions 232 and the fixingportions 233, the proximal end of themain frame 100 has a plurality of closedloop structures 110, thetooth fastening portions 232 and the fixingportions 233 form a gap after being engaged, and the size of the gap matches the size of theclosed loop structures 110, that is, thetooth fastening portions 232 and the fixingportions 233 engage to engage theclosed loop structures 110 in the gap, so as to engage and connect theclosed loop structures 110, thereby eliminating the operation of bundling or welding themain frame 100 at the connectingmember 230, saving time and labor, facilitating the production, and theclosed loop structures 110 can move in the gap to a small extent, facilitating the flexibility of themain frame 100 during the scaling operation.

According to some embodiments of the present invention, in the forming step, themain frame body 100 is a net-shaped skeleton structure formed by cutting, and the specific steps are as follows:

s1, cutting or carving the raw material according to the preset grains;

s2, taking out the waste material after cutting or carving to form a cutting body or a carving body with a plurality of rods;

s3, placing the cutting body or the carving body into a prefabricated grinding tool, and opening or extruding the cutting body or the carving body to form a mesh framework structure with one end open and the other end closed;

s4, carrying out heat setting on the cutting body or the carving body of the latticed framework structure to form amain frame body 100;

s5, the open loop structure of themain frame 100 is bound into the bindingmember 310, and theclosed loop structure 110 is engaged with thefastening part 233 via thetooth fastening part 232.

Themain frame 100 is first formed without weaving, and then theclosed loop structure 110 is formed and then theclosed loop structure 110 is engaged and connected through thetooth fastening part 232 and the fixingpart 233 of the connectingmember 230, wherein the predetermined lines refer to the size, the gap and other structures of the predetermined unit grid.

In the above embodiment, referring to fig. 4 and 5, thetooth fastening portion 232 is configured as a bent tooth, the fixingportion 233 is configured as a stepped surface, and a gap is formed between the bent tooth and the stepped surface for engaging with the closed-loop structure 110, and the stepped surface can further prevent the closed-loop structure 110 from falling off the connectingmember 230.

According to some embodiments of the invention, with reference to fig. 1, the welding step is followed by an engraving step:

and engraving, namely engraving ascale value 221 on thehandle 220 of the regulatingassembly 200 for confirming the deformation amount of themain frame 100.

In the above embodiment, referring to fig. 1, the scale values 221 are disposed on the side wall of thehandle 220, the scale values 221 are distributed along the axial direction of the handle, and eachscale value 221 represents a value of a deformation variable of themain frame body 100, so that the size of themain frame body 100 at different scales can be clearly known, and an operator can conveniently perform scaling operation on themain frame body 100 according to different blood vessel sizes.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

Translated fromChinese

1.一种支架的制作方法，其特征在于，包括以下步骤：1. the manufacture method of a bracket, is characterized in that, comprises the following steps:成型，将主架体的一端制成闭环结构，将闭环结构穿设至连接件上，并将主架体的另一端收束至丝杆的远端的收束件内，然后进行热定型处理；Forming, one end of the main frame body is made into a closed-loop structure, the closed-loop structure is passed through the connecting piece, and the other end of the main frame body is bundled into the bundle at the distal end of the screw rod, and then heat-setting treatment is performed. ;装配，将控制旋钮安装至调控组件，将所述丝杆的近端连接在控制旋钮上，使控制旋钮可以对丝杆进行推/拉操作；Assembling, installing the control knob to the control assembly, and connecting the proximal end of the screw rod to the control knob, so that the control knob can push/pull the screw rod;焊接，将所述连接件焊接至所述调控组件。Welding, welding the connector to the regulating assembly.2.根据权利要求1所述的一种支架的制作方法，其特征在于，所述成型步骤中，所述连接件设置有若干通孔，每个所述闭环结构的两端分别分布在两个所述通孔中，或每个所述闭环结构单独分布在每个所述通孔中。2 . The method for manufacturing a stent according to claim 1 , wherein in the forming step, the connector is provided with a plurality of through holes, and the two ends of each closed-loop structure are respectively distributed in two In the through holes, or each of the closed-loop structures is individually distributed in each of the through holes.3.根据权利要求2所述的一种支架的制作方法，其特征在于，所述成型步骤中，所述主架体为编织成型的网状骨架结构，每个所述闭环结构的两端分别分布在两个所述通孔中，其具体编织步骤如下：3 . The method for manufacturing a stent according to claim 2 , wherein in the forming step, the main frame body is a mesh skeleton structure formed by weaving, and the two ends of each closed-loop structure are respectively 3. 4 . Distributed in the two through holes, the specific weaving steps are as follows:S1、将一根以上的丝材穿过所述连接件的所述通孔，并经由另一个所述通孔穿出，形成所述闭环结构；S1, passing more than one wire material through the through hole of the connector, and passing through another through hole to form the closed-loop structure;S2、将由两个所述通孔穿出的所述丝材进行编织，形成网状骨架结构。S2. Weaving the wires pierced by the two through holes to form a mesh skeleton structure.4.根据权利要求2所述的一种支架的制作方法，其特征在于，所述成型步骤中，所述主架体为编织成型的网状骨架结构，每个所述闭环结构单独分布在每个所述通孔中，其具体编织步骤如下：4 . The method for manufacturing a stent according to claim 2 , wherein in the forming step, the main frame body is a woven and formed mesh skeleton structure, and each of the closed-loop structures is individually distributed in each In each of the through holes, the specific weaving steps are as follows:S1、将一根以上的丝材穿过所述连接件的所述通孔，形成所述闭环结构；S1, passing more than one wire through the through hole of the connector to form the closed-loop structure;S2、将由所述通孔穿出的所述丝材进行编织，形成网状骨架结构。S2. Weaving the wires pierced through the through holes to form a mesh skeleton structure.5.根据权利要求2所述的一种支架的制作方法，其特征在于，若干所述通孔沿圆周均布在所述连接件的侧壁上。5 . The method for manufacturing a bracket according to claim 2 , wherein a plurality of the through holes are uniformly distributed on the side wall of the connecting piece along the circumference. 6 .6.根据权利要求2所述的一种支架的制作方法，其特征在于，若干所述通孔竖直或倾斜设置在所述连接件的端面。6 . The method for manufacturing a bracket according to claim 2 , wherein a plurality of the through holes are vertically or obliquely arranged on the end face of the connecting piece. 7 .7.根据权利要求1所述的一种支架的制作方法，其特征在于，所述成型步骤中，所述连接件包括齿扣部和固定部，所述主架体的近端设置有若干闭环结构，所述齿扣部与所述固定部之间形成有容置所述闭环结构的间隙。7 . The method for manufacturing a stent according to claim 1 , wherein in the forming step, the connecting piece comprises a toothed portion and a fixing portion, and the proximal end of the main frame body is provided with several closed loops. 8 . structure, a gap for accommodating the closed-loop structure is formed between the toothed portion and the fixed portion.8.根据权利要求7所述的一种支架的制作方法，其特征在于，所述成型步骤中，所述主架体通过切割成型，其具体步骤如下：8. The method for manufacturing a stent according to claim 7, wherein in the forming step, the main frame body is formed by cutting, and the specific steps are as follows:S1、按照预设纹路对原材料进行切割或雕刻；S1. Cut or engrave the raw material according to the preset texture;S2、取出切割或雕刻后的废料，形成具有多根杆柱的切割体或雕刻体；S2, take out the waste after cutting or engraving, and form a cutting body or engraving body with multiple poles;S3、将所述切割体或所述雕刻体装入预制磨具，将所述切割体或所述雕刻体撑开或挤压形成一端开环、另一端闭环的网状骨架结构；S3. Load the cutting body or the engraving body into a prefabricated abrasive tool, and stretch or extrude the cutting body or the engraving body to form a mesh skeleton structure with an open loop at one end and a closed loop at the other end;S4、对网格状骨架结构的所述切割体或所述雕刻体进行热定型，形成所述主架体；S4, heat-setting the cutting body or the engraving body of the grid-like skeleton structure to form the main frame body;S5、将所述主架体的开环结构收束至所述收束件内，所述闭环结构通过所述齿扣部和所述固定部进行咬合连接。S5 , constricting the open-loop structure of the main frame body into the constricting member, and the closed-loop structure is snap-connected through the toothed portion and the fixing portion.9.根据权利要求7所述的一种支架的制作方法，其特征在于，所述齿扣部设置为弯齿，所述固定部设置为台阶面，所述弯齿和所述台阶面之间形成所述间隙。9 . The manufacturing method of a bracket according to claim 7 , wherein the toothed portion is set as a curved tooth, the fixed portion is set as a stepped surface, and the gap between the curved tooth and the stepped surface is 9 . The gap is formed.10.根据权利要求1至9任一项所述的一种支架的制作方法，其特征在于，所述焊接步骤之后还设置有雕刻步骤：10. The manufacturing method of a bracket according to any one of claims 1 to 9, wherein a step of engraving is further provided after the welding step:雕刻，在所述调控组件的手柄上雕刻出刻度值，用于确认所述主架体的形变量。For engraving, a scale value is engraved on the handle of the regulating assembly, which is used to confirm the deformation amount of the main frame body.

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