A handheld hemostatic needle

Abstract

The present invention discloses a handheld hemostatic needle, which includes a housing, a probe, a heating module, an adjusting member, a shrapnel, a fixing seat, a conversion member and an output member. The tail end of the probe is connected to the housing, and the heating module is used to heat the probe. The fixing seat is connected to the housing, and a first through hole is provided thereon. A plurality of limiting grooves arranged along the circumferential direction of the first through hole are provided on the inner wall of the first through hole. The shrapnel is arranged in the first through hole and includes a middle part and two side wings located at both ends of the middle part; the end parts of the two side wings respectively extend into the two limiting grooves, and the end parts of the side wings abut against the inner walls of the corresponding limiting grooves to limit the rotation of the shrapnel in the first through hole. When the adjusting member rotates, the adjusting member abuts against the side wing located at the front end in the rotation direction of the two side wings and causes it to elastically deform to leave the limiting groove. When the adjusting member rotates, it drives the shrapnel to rotate, and the rotation of the shrapnel drives the conversion member to rotate. When the conversion member rotates, it drives the output member to move along the axial direction of the probe; the output member is used to connect with the guide needle.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a handheld hemostatic needle. Background Art

[0002] A hemostatic needle is a medical device used to quickly control bleeding and is widely used in fields such as surgical operations, trauma treatment, and minimally invasive interventional therapy. For example, during a percutaneous biopsy operation, after the biopsy needle has obtained the biopsy tissue, it is necessary to seal the biopsy channel. There are some existing electrocautery devices that are used in conjunction with a guide needle; after the biopsy needle has completed sampling, the electrocautery device is connected to the guide needle, and the probe in the electrocautery device passes through the guide needle and enters the biopsy channel, and then the probe is heated to burn the tissue around the biopsy channel, thereby achieving the sealing of the biopsy channel. Among them, the probe of the electrocautery device is connected to the guide needle through an adapter, and the adapter is threadedly connected to the guide needle, but the connection between the adapter and the probe is achieved by the extrusion of a silicone member. Therefore, when subjected to an external force, the probe and the rubber member are still likely to move. Summary of the Invention

[0003] The purpose of the present invention is to provide a handheld hemostatic needle to solve the problem that the length of the head end of the probe of the electrocautery device may still change after the electrocautery device is fixed to the guide needle in the prior art.

[0004] The technical solution of the present invention is as follows:

[0005] A handheld hemostatic needle includes a housing, a probe, a heating module, and an adjustment assembly. The adjustment assembly includes an adjustment member, a spring piece, a fixed seat, a conversion member, and an output member;

[0006] The tail end of the probe is connected to the housing, and the head end of the probe is used to extend into the guide needle; the heating module is installed in the housing, and the output end of the heating module contacts the probe to heat the probe;

[0007] The fixed seat is connected to the housing. The fixed seat is provided with a first through hole, and several limiting grooves are provided on the inner wall of the first through hole, and several of the limiting grooves are arranged along the circumferential direction of the first through hole; the axis of the first through hole is the rotation axis;

[0008] The spring piece is arranged in the first through hole. The spring piece includes a middle part and two wings located at both ends of the middle part. The end parts of the two wings respectively extend into the two limiting grooves, and the end parts of the wings abut against the inner walls of the corresponding limiting grooves to limit the rotation of the spring piece in the first through hole; when the adjustment member rotates around the rotation axis, the adjustment member abuts against the wing located at the front end in the rotation direction of the two wings and causes it to elastically deform to leave the limiting groove;

[0009] The shrapnel cooperates with the conversion member and the adjusting member, and is configured to drive the shrapnel to rotate when the adjusting member rotates, and drive the conversion member to rotate by the rotation of the shrapnel;

[0010] The conversion member is connected to the output member, and when the conversion member rotates, it drives the output member to move along the axis direction of the probe; the output member is used to connect to the guide pin.

[0011] Optionally, the two side wings are located on both sides of the conversion member, and there is a spacing between the side wings and the conversion member for elastic deformation of the side wings;

[0012] There are two driving parts provided on the adjusting member, corresponding to the two side wings respectively; one side of the side wing is the conversion member, and the other side is the corresponding driving part, and the side wing abuts against the driving part; when the adjusting member rotates around the rotation axis, the driving part at the front end of the rotation direction drives the corresponding side wing to elastically deform to leave the limiting groove.

[0013] Optionally, the adjusting assembly further includes a stopper, the stopper is connected to the conversion member, and the stopper and the conversion member cooperate to form a receiving groove, and the middle part of the shrapnel is received in the receiving groove.

[0014] Optionally, the receiving groove is a through groove, the middle part of the shrapnel extends into the receiving groove along the direction of the rotation axis, and the two side wings of the shrapnel leave the receiving groove through the two ends of the through groove respectively.

[0015] Optionally, the output member passes through the conversion member and is threadedly connected thereto; a limiting structure is provided between the output member and the housing, and the limiting structure is used to limit the output member to move only along the axis direction of the probe.

[0016] Optionally, the limiting structure includes a slider and a sliding groove, the slider is slidably connected to the sliding groove along the axis direction of the probe; either the slider or the sliding groove is provided on the output member, and the other is provided on the housing.

[0017] Optionally, the adjusting member, the fixed seat, and the conversion member are all sleeved on the output member, the output member is provided with the second through hole arranged along the axis direction of the probe, and the tail end of the probe passes through the second through hole and is connected to the housing.

[0018] Optionally, the adjusting assembly is arranged in the housing, and a first opening for the adjusting member to extend out is provided on the housing, and a second opening for the output member to extend out is further provided on the housing.

[0019] Optionally, a blocking portion is provided on the portion of the output member extending outside the housing, and the blocking portion is configured to be unable to enter the housing through the second opening.

[0020] Optionally, the adjusting assembly further includes an adapter. A through hole for the probe to pass through is provided on the adapter. One end of the adapter is provided with a thread for threaded connection with the guide pin, and the other end of the adapter is snap-connected to the output member.

[0021] Due to the adoption of the above technical solutions, the present invention has the following advantages and positive effects compared with the prior art:

[0022] For the handheld hemostatic needle provided by the present invention, the probe is heated by the heating module, so that the probe can burn the tissue around the biopsy channel to seal the biopsy channel. Moreover, when an external force drives the adjusting member to rotate, the adjusting member abuts against the front wing in the rotation direction of the two wings of the elastic piece and causes it to undergo elastic deformation, so that the wing can leave the limiting groove. After the wing leaves the limiting groove, the adjusting member can drive the elastic piece to rotate (if the front wing in the rotation direction does not undergo elastic deformation, its end will abut against the inner wall of the limiting groove and prevent the elastic piece from rotating; while the rear wing in the rotation direction will slide out of the original limiting groove smoothly when the elastic piece rotates and has no blocking effect on the rotation of the elastic piece). Furthermore, through the conversion member, the output member moves relative to the housing along the axial direction of the probe. Since the output member is connected to the guide pin, the length of the probe extending out of the guide pin can be changed by driving the adjusting member.

[0023] When an external force acts on the probe and attempts to move it, since the tail end of the probe is connected to the housing, the relative position between the probe and the housing will not change. When an external force acts on the output member and attempts to move it, since the two ends of the two wings of the elastic piece respectively abut against the inner walls of the corresponding limiting grooves, the output member cannot move. Therefore, for the handheld hemostatic needle provided by the present invention, unless an external force drives the adjusting member to rotate, the length of the probe extending out of the guide pin cannot be changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention.

[0025] Figure 1 and Figure 2 is a schematic diagram of a transfer structure in the prior art;

[0026] Figure 3 is a schematic diagram of a handheld hemostatic needle of the present invention;

[0027] Figure 4Explosion schematic diagram of a handheld hemostatic needle of the present invention;

[0028] Figure 5 Cross-sectional schematic diagram of a handheld hemostatic needle of the present invention;

[0029] Figure 6 Cross-sectional schematic diagram of a handheld hemostatic needle of the present invention at the adapter;

[0030] Figure 7 Schematic diagram of an adjustment component of the present invention;

[0031] Figure 8 Cross-sectional schematic diagram of an adjustment component of the present invention;

[0032] Figure 9 Explosion schematic diagram of an adjustment component of the present invention;

[0033] Figure 10 is Figure 7 A - A cross-sectional schematic diagram in

[0034] Figures 11 to 17 Schematic diagram of the steps of a percutaneous biopsy operation.

[0035] Explanation of reference numerals:

[0036] 01: Fixed nut; 02: Silicone plug; 03: Fixing nut; 04: Guide needle fixing cap; 05: Guide needle; 06: Puncture needle; 07: Biopsy needle; 08: Handheld hemostatic needle; 09: Hemostasis area;

[0037] 1: Upper shell; 2: Lower shell; 201: Slide groove; 3: Probe; 4: Adjusting member; 401: Driving part; 5: Elastic piece; 501: Intermediate part; 502: Flank; 6: Fixed seat; 601: Limiting groove; 7: Conversion member; 701: Stopping member; 8: Output member; 801: Blocking part; 802: Block; 9: Slide block; 10: Adapter; 11: Circuit board; 1101: Slide switch; 1102: Tactile switch; 12: Battery; 13: Gear switch; 14: Button. Detailed implementation manners

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will describe the specific implementation manners of the present invention with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other implementation manners can also be obtained.

[0039] To simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, to simplify the drawings for easy understanding, in some figures, only one of the components with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation.

[0040] As Figure 1 and Figure 2 shown, the connection method of the probe of the electrocautery device in the prior art connected to the guide needle 05 through the adapter structure is shown. The adapter structure includes a fixing nut 01, a silica gel plug 02, a fixing nut 03, and a guide needle fixing cap 04. The silica gel plug 02 is provided inside the fixing nut 03. When the fixing nut 03 is tightened with the fixing nut 01, the silica gel plug 02 is squeezed, so that the adapter structure is fixed to the probe in the electrocautery device. The fixing nut 03 and the guide needle fixing cap 04 are fixedly connected, and the guide needle fixing cap 04 can be connected to the guide needle 05. This adapter structure makes the probe of the electrocautery device prone to overcome the friction with the silica gel plug and move when the probe is stressed (possible stress situations include: being stressed due to accidental touch during operation, the coagulated tissue will have a binding force on the probe during the hemostasis ablation process, etc.).

[0041] Referring to Figures 3 to 17 , this embodiment provides a handheld hemostatic needle 08, which includes a housing, a probe 3, a heating module, and an adjusting component. The adjusting component includes an adjusting member 4, a spring piece 5, a fixing seat 6, a conversion member 7, and an output member 8. The tail end of the probe 3 is connected to the housing, and the head end of the probe 3 is used to extend into the guide needle 05. The heating module is installed in the housing, and the output end of the heating module contacts the probe 3 to heat the probe 3. The fixing seat 6 is connected to the housing. There are a number of limiting grooves 601 on the inner wall of the first through hole of the fixing seat 6, and the number of limiting grooves 601 is arranged along the circumferential direction of the first through hole; the axis of the first through hole is the rotation axis. The spring piece 5 is arranged in the first through hole. The spring piece 5 includes a middle part and two wings located at both ends of the middle part. The end parts of the two wings respectively extend into the two limiting grooves 601, and the end parts of the wings abut against the inner walls of the corresponding limiting grooves 601 to limit the rotation of the spring piece 5 in the first through hole. When the adjusting member 4 rotates around the rotation axis, the adjusting member 4 abuts against the wing located at the front end in the rotation direction of the two wings and causes it to elastically deform to leave the limiting groove 601. The spring piece 5 cooperates with the conversion member 7 and the adjusting member 4, and is configured to drive the spring piece 5 to rotate when the adjusting member 4 rotates and drive the conversion member 7 to rotate by the rotation of the spring piece 5. The conversion member 7 is connected to the output member 8, and when the conversion member 7 rotates, it drives the output member 8 to move along the axis direction of the probe 3; the output member 8 is used to connect to the guide needle 05.

[0042] The handheld hemostatic needle 08 provided in this embodiment can adjust the position of the output member 8 relative to the housing in the axial direction of the probe 3 by rotating the adjusting member 4. The output member 8 is used to connect with the guide needle 05 (wherein, the output member 8 can be directly connected to the guide needle 05 or indirectly connected to the guide needle 05 through other components), and the probe 3 is connected to the housing. Therefore, the handheld hemostatic needle 08 in this embodiment can adjust the length of the probe 3 extending out of the guide needle 05 after passing through the guide needle 05 by rotating the adjusting member 4.

[0043] Moreover, when an external force acts on the probe 3 and attempts to move it, since the tail end of the probe 3 is connected to the housing, the relative position between the probe 3 and the housing will not change; when an external force acts on the output member 8 and attempts to move it, since the two ends of the two wings of the elastic piece 5 respectively abut against the inner walls of the corresponding limiting grooves, the output member 8 cannot move. Therefore, for the handheld hemostatic needle 08 provided in this embodiment, unless an external force drives the adjusting member 4 to rotate, the length of the probe 3 extending out of the guide needle 05 after passing through the guide needle 05 cannot be changed.

[0044] The following further describes the handheld hemostatic needle 08 provided in the embodiment.

[0045] The housing includes an upper shell 1 and a lower shell 2. The upper shell 1 and the lower shell 2 are fixedly connected to form the housing. Among them, the connection method between the upper shell 1 and the lower shell 2 can be snap connection, bonding, etc., and is not specifically limited.

[0046] The probe 3 is the part that specifically performs the hemostatic function. The probe 3 is arranged along the central axis of the housing. The tail end of the probe 3 (that is, the end relatively close to the operator and far from the surgical object) extends into the housing and is fixedly connected to the housing; the head end of the probe 3 extends out of the housing, and moreover, the head end of the probe 3 extends into the guide needle 05 and extends out after passing through the guide needle 05.

[0047] Among them, the guide needle 05 is a component outside the handheld hemostatic needle 08 provided in this embodiment. The guide needle 05 generally has a needle tube part and a connection end part. One end of the needle tube part is fixedly connected to the connection end part, and the other end is used to extend into the surgical tissue. The connection end part is used to connect with other instruments, such as a puncture needle 06, a biopsy needle 07, the handheld hemostatic needle 08 in this embodiment, etc.; moreover, a hole communicating with the internal channel of the needle tube part is provided on the connection end part, so that the probe 3 in the puncture needle 06, the biopsy needle 07, and the handheld hemostatic needle 08 in this embodiment can pass through and extend out of the needle tube part. Generally, a thread is provided on the connection end part, and it is fixedly connected to other instruments through the thread.

[0048] Mainly refer to Figure 9 and Figure 10 , in the adjusting assembly, the adjusting member 4, the fixed seat 6, and the conversion member 7 can all be sleeved on the output member 8. A second through hole is provided on the output member 8 along the axial direction of the probe 3. The tail end of the probe 3 passes through the second through hole and is connected to the housing.

[0049] The fixed seat 6 is fixedly connected to the outer shell. Specifically, in this embodiment, the fixed seat 6 is snap-connected to the outer shell. Of course, in other embodiments, the fixed seat 6 can also be fixedly connected to the outer shell in other ways, such as by threaded fasteners, bonding, etc. The limiting grooves 601 arranged in the first through hole on the fixed seat 6 preferably have a triangular cross-section along the axis direction of the first through hole. Further, the adjacent limiting grooves are arranged closely; that is, the limiting grooves 601 arranged on the inner wall of the first through hole of the fixed seat 6 can form a toothed ring.

[0050] The elastic piece 5 is generally similar to a U-shaped structure and covers the conversion piece 7 from the circumferential side of the conversion piece 7.

[0051] The two side wings of the elastic piece 5 are located on both sides of the circumferential direction of the conversion piece 7, and there is a gap between the side wings and the conversion piece 7 for the elastic deformation of the side wings. The adjusting member 4 is provided with two driving portions 401, which correspond to the two side wings respectively. One side of the side wing is the conversion piece 7, and the other side is the corresponding driving portion 401, and the side wing abuts against the driving portion 401. Thus, when the adjusting member 4 rotates around the rotation axis, the driving portion 401 at the front end of the rotation direction drives the corresponding side wing to elastically deform to leave the limiting groove 601, so that the elastic piece 5 can be driven to rotate, and then the conversion piece 7 can be driven to rotate.

[0052] The adjusting assembly further includes a stopper 701. The stopper 701 is connected to the conversion piece 7, and the stopper 701 and the conversion piece 7 cooperate to form a receiving groove, and the middle portion of the elastic piece 5 is received in the receiving groove. Among them, the stopper 701 can be integrally formed on the conversion piece 7, or can be fixedly connected to the conversion piece 7 by other means such as bonding. Preferably, the receiving groove is a through groove, the middle portion of the elastic piece 5 extends into the receiving groove along the direction of the rotation axis, and the two side wings of the elastic piece 5 leave the receiving groove through the two ends of the through groove respectively. Thus, when the adjusting member 4 rotates, the elastic piece 5 can be driven to rotate, and the conversion piece 7 can be driven to rotate by the rotation of the elastic piece 5. Of course, in other embodiments, the adjusting member 4 can also be rotated to drive the elastic piece 5 to rotate, and the elastic piece 5 can be rotated to drive the conversion piece 7 to rotate. For example, the middle parts of the elastic piece 5 are respectively bonded to the adjusting member 4 and the conversion piece 7, etc., which are not limited here.

[0053] The output member 8 passes through the conversion member 7 and is threadedly connected thereto; specifically, the output member 8 can be a screw rod, an external thread is provided on the outer side wall of the output member 8, and a corresponding internal thread is provided on the conversion member 7. A limiting structure is provided between the output member 8 and the housing, and the limiting structure is used to limit the output member 8 to move only along the axis direction of the probe 3. Specifically, the limiting structure can include a slider 9 and a chute 201, and the slider 9 is slidably connected to the chute 201 along the axis direction of the probe 3; either the slider 9 or the chute 201 is provided on the output member 8, and the other is provided on the housing. In this way, the rotation of the conversion member 7 and the linear movement of the output member 8 can be converted into each other. More specifically, the chute 201 can be provided on the housing, the slider 9 is fixedly connected to the output member 8, and the connection manner between the slider 9 and the output member 8 can be that the slider 9 is integrally formed on the output member 8, or can be fixedly connected to the output member 8 by means of bonding, key connection, etc.

[0054] The adjustment assembly is integrally provided inside the housing. The housing is provided with a first opening for the adjustment member 4 to extend out, and the housing is also provided with a second opening for the output member 8 to extend out. Among them, the adjustment member 4 can adopt a structure similar to a turntable, which is convenient for the operator to drive the adjustment member 4 to rotate. A blocking portion 801 is provided on the portion of the output member 8 extending out of the housing, and the blocking portion 801 is configured to not be able to enter the housing through the second opening, thereby preventing the adjustment member 4 from completely entering the housing.

[0055] Preferably, in this embodiment, the output member 8 is connected to the guide pin 05 through other components; specifically, mainly refer to Figure 6 , a clamping block 802 is further provided on the portion of the output member 8 extending out of the housing, and the adjustment assembly further includes an adapter 10. One end of the adapter 10 is provided with a thread for threadedly connecting with the guide pin 05, and the other end of the adapter 10 is clamped and connected to the clamping block 802 on the output member 8. And, a through hole for the probe 3 to pass through is provided on the adapter 10. Among them, on the adjustment member 4, both the blocking portion 801 and the clamping block 802 are located outside the housing, and the blocking portion 801 is relatively closer to the housing among the two.

[0056] During adjustment, rotate the adjusting member 4. The driving portion 401 at the front end of the rotation direction presses the corresponding flank on the elastic piece 5. After being pressed, this flank disengages from the corresponding limiting groove 601 on the fixed seat 6, so that the elastic piece 5 is in an unlocked state (if the flank located in the front of the rotation direction does not undergo elastic deformation, its end will abut against the inner wall of the limiting groove, preventing the elastic piece 5 from rotating; while the flank located in the rear of the rotation direction will slide out of the original limiting groove as the elastic piece 5 rotates, and has no blocking effect on the rotation of the elastic piece 5). Therefore, when the operator rotates the adjusting member 4, the switching member 7 can be rotated through the elastic piece 5. The switching member 7 is threadedly connected to the output member 8, and the output member 8 is restricted to move linearly due to the limiting structure. Therefore, the rotation of the switching member 7 drives the output member 8 to move linearly, thereby adjusting the length of the output member 8 extending out of the housing. Since the probe 3 is fixed to the housing, the length of the probe 3 extending out of the output member 8 can be adjusted. Moreover, the output member 8 is connected to the guide pin 05 through the adapter 10. Therefore, the length of the probe 3 extending out of the guide pin 05 after passing through the guide pin 05 can be adjusted.

[0057] When an external force acts on the output member 8 and attempts to move it, the output member 8 attempts to drive the switching member 7 to rotate. However, the rotation of the switching member 7 will inevitably drive the elastic piece 5 to rotate. At this time, the end portions of the two flanks of the elastic piece 5 respectively abut against the inner walls of the corresponding limiting grooves 601, and the elastic piece 5 is locked and cannot rotate, so that the switching member 7 cannot rotate and the output member 8 cannot move. Moreover, the probe 3 is fixedly connected to the housing, and the probe 3 will not move relative to the housing under force. Therefore, for the handheld hemostatic needle 08 provided in this embodiment, unless an external force drives the adjusting member 4 to rotate, the length of the probe 3 extending out of the guide pin 05 after passing through the guide pin 05 cannot be changed.

[0058] In addition, the operator can also drive the adjusting member 4 to rotate with one hand, which is convenient for adjustment. Moreover, the output member 8 is sleeved outside the probe 3, which plays a protective role for the probe 3 and avoids the risk of the probe 3 being bent in the prior art.

[0059] The heating module is used to heat the probe 3, so that the probe 3 can cauterize the tissue around the biopsy channel to achieve the sealing of the biopsy channel. The heating module includes a circuit board 11, a battery 12, a heating element, etc. Among them, the heating element is the output end of the heating module, and the heating element can be a wire that is electrically connected to the circuit board 11 and in contact conduction with the probe 3; of course, in other embodiments, the heating element can also adopt other structures, which are not limited here. The battery 12 is fixed in the housing, and the battery 12 is electrically connected to the circuit board 11 to supply power to the circuit board 11; among them, the circuit board 11, the battery 12, the heating element and the probe 3 form a loop, and the circuit board 11 can control the opening and closing of the loop and the current passing through the circuit, so as to control whether the heating element heats the probe 3 and the heating degree of the probe 3. A slide switch 1101 is provided on the circuit board 11, and a gear switch 13 is installed on the upper shell 1. The gear switch 13 is connected to the slide switch 1101 to realize the selection of two gears for the heating degree of the heating element to heat the probe 3. A touch switch 1102 is also provided on the circuit board 11, and the touch switch 1102 is connected to a button 14 installed on the upper shell 1. Pressing the button 14 can give a signal to the circuit board 11, and then turn on or off the heating function.

[0060] The following describes the puncture biopsy surgical steps using the handheld hemostatic needle 08 provided in this embodiment (it should be noted that the following steps are only a feasible surgical step, but not a limitation on the handheld hemostatic needle 08 of this embodiment):

[0061] Step 1: Refer to Figure 11 and Figure 12 to select a suitable trocar, biopsy needle 07 and the handheld hemostatic needle 08 provided in this embodiment; the trocar includes a needle tube and a stylet. The needle tube is the above-mentioned guide needle 05 for establishing a channel, and the stylet is the puncture needle 06 for puncture; remove the puncture needle 06 in the trocar, connect the biopsy needle 07 to the guide needle 05 to obtain the length from the tip of the biopsy needle 07 to the tail end of the guide needle 05, then remove the biopsy needle 07, connect the handheld hemostatic needle 08 to the guide needle 05, and drive the adjusting member 4 to adjust the length of the output member 8 extending out of the housing, so as to adjust the length from the tip of the probe 3 in the handheld hemostatic needle 08 (that is, the outermost side of the probe 3 along its axial direction in the head end direction) to the tail end of the guide needle 05 to be equal to the length from the tip of the biopsy needle 07 to the tail end of the guide needle 05, and then remove the handheld hemostatic needle 08;

[0062] Step 2: Refer to Figure 13 to connect the puncture needle 06 to the guide needle 05 and perform a puncture action;

[0063] Step 3: Refer to Figure 14 to remove the puncture needle 06 to form a biopsy channel;

[0064] Step 4: Refer toFigure 15 Connect the biopsy needle 07 to the guide needle 05, and then perform the biopsy sampling operation;

[0065] Step Five: Refer to Figure 16 After the sampling is completed, remove the biopsy needle 07;

[0066] Step Six: Refer to Figure 17 Connect the handheld hemostatic needle 08 to the guide needle 05 and perform the hemostasis operation (the hemostasis area 09 is as shown in Figure 17 ); finally, withdraw the guide needle 05 and the handheld hemostatic needle 08.

[0067] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, provided that these changes fall within the scope of the claims of the present invention and their equivalent technologies, they still fall within the protection scope of the present invention.

Claims

1. A handheld hemostatic needle, characterized in that, It includes a housing, a probe, a heating module and an adjustment component. The adjustment component includes an adjustment piece, a shrapnel, a fixed seat, a conversion piece and an output piece; The tail end of the probe is connected to the housing, and the head end of the probe is used to extend into the guide pin. The heating module is installed on the housing, and the output end of the heating module contacts the probe to heat the probe; The fixed seat is connected to the housing. The fixed seat is provided with a first through hole, and several limiting grooves are provided on the inner wall of the first through hole, and several of the limiting grooves are arranged along the circumferential direction of the first through hole. The axis of the first through hole is the rotation axis; The shrapnel is arranged in the first through hole. The shrapnel includes a middle part and two wings located at both ends of the middle part. The end parts of the two wings respectively extend into the two limiting grooves, and the end parts of the wings abut against the inner walls of the corresponding limiting grooves to limit the rotation of the shrapnel in the first through hole. When the adjustment piece rotates around the rotation axis, the adjustment piece abuts against the wing located at the front end in the rotation direction of the two wings and causes it to elastically deform to leave the limiting groove; The shrapnel cooperates with the conversion piece and the adjustment piece, and is configured to drive the shrapnel to rotate when the adjustment piece rotates and drive the conversion piece to rotate by the rotation of the shrapnel; The conversion piece is connected to the output piece, and when the conversion piece rotates, it drives the output piece to move along the axis direction of the probe. The output piece is used to connect to the guide pin; Wherein, the two wings are located on both sides of the conversion piece, and there is a spacing between the wing and the conversion piece for the elastic deformation of the wing; There are two driving parts on the adjustment piece, corresponding to the two wings respectively. One side of the wing is the conversion piece, and the other side is the corresponding driving part, and the wing abuts against the driving part. When the adjustment piece rotates around the rotation axis, the driving part located at the front end in the rotation direction drives the corresponding wing to elastically deform to leave the limiting groove; The output piece passes through the conversion piece and is threadedly connected to it. A limiting structure is provided between the output piece and the housing, and the limiting structure is used to limit the output piece to only move along the axis direction of the probe; The adjustment piece, the fixed seat and the conversion piece are all sleeved on the output piece. The output piece is provided with a second through hole arranged along the axis direction of the probe, and the tail end of the probe passes through the second through hole and is connected to the housing.

2. The handheld hemostatic needle according to claim 1, characterized in that, The adjustment component further includes a stopper. The stopper is connected to the conversion piece, and the stopper and the conversion piece cooperate to form a receiving groove, and the middle part of the shrapnel is received in the receiving groove.

3. The handheld hemostatic needle according to claim 2, wherein, The receiving groove is a through groove. The middle part of the shrapnel extends into the receiving groove along the direction of the rotation axis, and the two wings of the shrapnel respectively leave the receiving groove through the two openings at both ends of the through groove.

4. The handheld hemostatic needle according to claim 1, characterized in that, The limiting structure includes a slider and a sliding groove. The slider is slidably connected to the sliding groove along the axis direction of the probe. Either the slider or the sliding groove is arranged on the output piece, and the other is arranged on the housing.

5. The handheld hemostatic needle according to claim 1, wherein, The adjusting assembly is disposed within the housing, and a first opening for the adjusting member to extend out is provided on the housing, and a second opening for the output member to extend out is further provided on the housing.

6. The handheld hemostatic needle according to claim 5, wherein, A blocking portion is provided on the part of the output member extending out of the housing, and the blocking portion is configured to be unable to enter the housing through the second opening.

7. The handheld hemostatic needle according to claim 1, wherein, The adjusting assembly further includes an adapter. A through hole for the probe to pass through is provided on the adapter; one end of the adapter is provided with a thread for threaded connection with the guide pin, and the other end of the adapter is snap-connected to the output member.

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