CN210990960U - Handle and conveying system - Google Patents

Abstract

The utility model provides a handle, be in including the handle body to and the setting conveyor in the handle body, conveyor is used for carrying the pjncture needle, conveyor includes knob, drive mechanism and driving piece, the knob with the handle body rotates to be connected, the driving piece with handle body sliding connection, the driving piece with pjncture needle fixed connection, the knob rotates and to drive mechanism drive driving piece reciprocating motion. The knob is rotatably connected with the handle body, so that the driving piece can be driven to reciprocate by rotating the knob, the puncture needle fixedly connected with the driving piece can be driven to reciprocate, the position of the puncture needle can be adjusted by adjusting the rotating position of the knob, and the position of the puncture needle after being released can be adjusted.

Description

Handle and conveying system

Technical Field

The utility model relates to the technical field of medical equipment, in particular to handle and conveying system.

Background

Benign Prostatic Hyperplasia (BPH) is the most common disease among the diseases that cause micturition disorders in middle-aged and elderly men, and is mainly manifested by hyperplasia of interstitial and glandular components of the prostate histologically, anatomical enlargement of the prostate (BPE), clinical symptoms dominated by lower urinary tract symptoms (L UTS), and urodynamic Bladder Outlet Obstruction (BOO).

In addition to drug treatment, Benign Prostatic Hyperplasia (BPH) is treated in several ways: (1) transurethral resection of the prostate; (2) suprapubic or retropubic prostatectomy; (3) laser prostate enucleation or resection. (4) Minimally invasive wound treatment including prostate stent.

Prostate stents generally employ an anchoring device, which is a permanent implant for attenuating small urinary streams, in the treatment of minimally invasive wounds. The anchoring device is implanted into the urethra through the delivery system, and after implantation, the left and right lobes of the prostate can be mechanically separated to push the prostate tissue pressing the urethra away, thereby achieving the therapeutic effect. The anchoring device is extremely low in invasiveness, ablation is not needed, symptoms of a patient can be continuously relieved, and the treatment effect is good.

However, the existing handle and delivery system for delivering the anchoring device can only release the anchoring device once, and the position of the anchoring device after release cannot be adjusted, so that the improvement of the existing delivery system is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a handle and conveying system to solve current handle and conveying system and do not possess the problem of the function of the position after the adjustment implant release.

In order to solve the technical problem, the utility model provides a handle, including the handle body, and set up conveyor in the handle body, conveyor is used for carrying the pjncture needle, conveyor includes knob, drive mechanism and driving piece, the knob with the handle body rotates to be connected, the driving piece with handle body sliding connection, the driving piece with pjncture needle fixed connection, the rotation of knob can drive the drive mechanism drive driving piece reciprocating motion.

Optionally, the transmission mechanism includes a driving connecting rod and a driven connecting rod, the driving connecting rod is fixedly connected with the knob, the driving connecting rod is rotatably connected with the driven connecting rod, and the driven connecting rod is rotatably connected with the driving piece.

Optionally, the conveying device further comprises a driving main shaft and a rotating shaft, the driving main shaft is rotatably connected with the handle body, the knob is fixedly connected with the driving main shaft, the driving connecting rod is rotatably connected with the rotating shaft, and the driven connecting rod is rotatably connected with the rotating shaft.

Optionally, the conveying device further comprises a driving gear and a driven gear, the driving gear is fixedly connected with the driving spindle, the driven gear is rotatably connected with the rotating shaft, and the driving gear is meshed with the driven gear.

Optionally, the handle further includes a sliding groove, the sliding groove is fixedly disposed on the handle body, the driving member is disposed in the sliding groove, and the driving member can reciprocate along the sliding groove.

Optionally, the handle further comprises a tightening mechanism for pulling a connector to move from the distal end to the proximal end.

Optionally, the tightening device is connected to the conveying device and adapted to pull the connecting member to move from the distal end to the proximal end under the driving of the transmission mechanism.

Optionally, the tightening device comprises a first gear and a second gear having an engaged state, the second gear being adapted to draw the link member from the distal end to the proximal end.

Optionally, the transmission mechanism includes a driving connecting rod and a driven connecting rod, the driving connecting rod is fixedly connected with the knob, the driving connecting rod is rotatably connected with the driven connecting rod, and the driven connecting rod is rotatably connected with the driving member; the conveying device further comprises a driving main shaft, the driving main shaft is rotatably connected with the handle body, the knob is fixedly connected with the driving main shaft, and the driving connecting rod is fixedly connected with the driving main shaft; the first gear is fixedly connected with the driving main shaft, the first gear can be driven to rotate by the rotation of the driving main shaft, at least one of the first gear and the second gear is an incomplete gear, the second gear is rotatably connected with the handle body and used for drawing the connecting piece to move from the far end to the near end, and the first gear and the second gear can be switched between the meshing state and the non-meshing state.

Optionally, when the first gear and the second gear are in an engaged state and rotate, the second gear is used for pulling the connecting piece to reciprocate.

The utility model also provides a conveying system, including foretell handle.

The utility model provides a pair of handle and conveying system has following beneficial effect:

the knob is rotatably connected with the handle body, and the knob can drive the transmission mechanism to drive the driving piece to reciprocate, so that the driving piece can be driven to reciprocate by rotating the knob, the puncture needle fixedly connected with the driving piece can be driven to reciprocate, the position of the puncture needle can be adjusted by adjusting the rotating position of the knob, and the position of the puncture needle after being released can be adjusted.

Drawings

FIG. 1 is a schematic view of the structure of an anchoring device;

FIG. 2 is a schematic structural view of a plurality of anchoring devices implanted in the urethra;

FIG. 3 is a schematic view of a handle according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a conveying device according to an embodiment of the present invention;

fig. 5 is a schematic view of a distal anchor according to an embodiment of the present invention;

FIG. 6 is a schematic view of the distal anchor and connector attachment arrangement in one embodiment of the present invention;

fig. 7 is a schematic structural view of a proximal anchor in an embodiment of the invention;

FIG. 8 is a schematic structural view of a puncture needle according to an embodiment of the present invention;

FIG. 9 is a schematic view of a partial structure of a puncture needle according to an embodiment of the present invention;

FIG. 10 is a schematic view of the distal end of the needle in accordance with an embodiment of the present invention;

FIG. 11 is a cross-sectional view of a delivery spindle according to an embodiment of the present invention;

fig. 12 is a schematic view of a partial structure of a conveying spindle according to an embodiment of the present invention;

fig. 13 is a schematic view of a proximal end carrier according to an embodiment of the present invention;

fig. 14 is a schematic structural view of a proximal pushing rod according to an embodiment of the present invention;

fig. 15 is a schematic structural view of a spindle holder 700 according to an embodiment of the present invention;

fig. 16 is a schematic view of an endoscope retainer 800 according to an embodiment of the present invention;

fig. 17 is a schematic structural view of a sheath holder according to an embodiment of the present invention.

Description of reference numerals:

100-an anchoring device;

110-proximal anchoring; 111-a proximal body; 112-a clamping portion; 120-distal anchoring; 121-an anchoring body; 122-a bending part; 130-a connector;

210-a handle body;

221-a knob; 222-a driving link; 223-a driven link; 224-a drive member;

226-a main shaft; 227-rotation axis; 228-a drive gear; 229-a driven gear;

230-a chute;

241-a first gear; 242-a second gear;

300-puncture needle; 310-a needle cannula body; 311-a body segment; 312-a bend section; 320-connecting sleeve;

400-a proximal carrier; 410-a proximal anchor loading window; 420-proximal anchor release window; 430-blade;

500-proximal push rod;

600-a transport spindle; 610-puncture needle channel; 620-proximal anchoring delivery channel; 630-scope channel;

700-a spindle holder; 710-sight glass through hole; 720-puncture needle through hole; 730-proximal anchoring delivery channel through hole;

800-endoscope holder.

Detailed Description

At present, the structure of the anchoring device commonly used in the treatment of minimally invasive wounds including prostatic stent can refer to fig. 1, and fig. 1 is a structural schematic diagram of the anchoring device 100. The anchoring device 100 includes a proximal anchor 110, a distal anchor 120, and a connector 130. The distal end of the connecting element 130 is fixedly connected to the distal anchor 120, and the proximal end of the connecting element 130 is detachably and fixedly connected to the proximal anchor 110. The proximal anchor 110 comprises a proximal body 111 and a grip portion 112 fixedly connected to the proximal body 111. The clamping portion 112 may clamp the connector 130 to limit movement of the connector 130 relative to the proximal anchor 110. When the clip portion 112 and the connector 130 are separated from each other, the connector 130 and the proximal anchor 110 are separated from each other.

The anchoring device 100 mechanically separates the left and right prostate lobes after implantation in the urethra and pushes the prostatic hyperplasia tissue pressing the urethra back to the distal location to treat benign prostatic hyperplasia. The process of implanting the anchoring device 100 essentially comprises the following steps: first, a puncture needle is implanted through the delivery system to puncture the prostate tissue through the puncture needle. Wherein the distal anchor 120 and the connector 130 fixedly attached to the distal anchor 120 are disposed in the needle. Next, the penetrating needle is withdrawn to release the distal anchor 120, thereby anchoring the distal anchor 120 in the prostate tissue. Again, the proximal anchor 110 is implanted via the delivery system to fixedly connect the proximal anchor 110 to the connector 130 and to anchor the proximal anchor 110 in the prostatic tissue, thereby completing implantation of the anchoring device 100. The above-mentioned implantation method can be used to implant a plurality of anchoring devices 100 in multiple times according to actual needs, generally 4-6 anchoring devices are required to be implanted, and the schematic structural diagram of the plurality of anchoring devices 100 implanted in the urethra can be referred to fig. 2, and fig. 2 is a schematic structural diagram of the plurality of anchoring devices 100 implanted in the urethra.

However, during implantation of the anchoring device 100 by the prior art handle and delivery system, the position of the puncture needle after release is not adjustable, and the distal anchor 120 is disposed in the puncture needle, the position of the distal anchor 120 release is related to the position of the puncture needle release, thus resulting in the position of the distal anchor 120 release being not adjustable. After the research of the applicant, the reason that the position of the puncture needle is not adjustable is that the puncture needle is driven by the conveying system to move for a certain distance, namely the puncture needle is driven by the conveying system to move for a non-adjustable distance.

Based on this, the utility model provides a handle, the handle includes handle body, conveyor and pjncture needle, conveyor sets up in the handle body, conveyor is used for carrying the pjncture needle, through with the pjncture needle conveyor sets the distance that the drive pjncture needle removed at certain limit adjustable structure, can make the position after the pjncture needle release adjustable.

The handle and delivery system of the present invention will be described in further detail with reference to the drawings and the detailed description. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

The present embodiment provides a handle. Referring to fig. 3 and 4, fig. 3 is a schematic structural view of a handle in an embodiment of the present invention, and fig. 4 is a schematic structural view of a conveying device in an embodiment of the present invention, the handle includes a handle body 210, and a conveying device disposed in the handle body 210, and the conveying device is used for conveying a puncture needle 300. The conveying device comprises a knob 221, a transmission mechanism and a driving piece 224, wherein the knob 221 is rotatably connected with the handle body 210, the driving piece 224 is slidably connected with the handle body 210, the input end of the transmission mechanism is connected with the knob 221, the output end of the transmission mechanism is connected with the driving piece 224, the rotation of the knob 221 can drive the transmission mechanism to drive the driving piece 224 to reciprocate, and the driving piece 224 is fixedly connected with the puncture needle 300.

Because the knob 221 is rotatably connected with the handle body 210, the rotation of the knob 221 can drive the transmission mechanism to drive the driving member 224 to reciprocate, so that the rotation of the knob 221 can drive the driving member 224 to reciprocate, thereby driving the puncture needle 300 fixedly connected with the driving member 224 to reciprocate, and the position of the puncture needle 300 can be adjusted by adjusting the rotating position of the knob 221, thereby adjusting the position of the puncture needle 300 after the puncture needle 300 is released.

As shown in fig. 4, the conveying device includes a crank-slider mechanism. The transmission mechanism comprises a driving connecting rod 222 and a driven connecting rod 223, the driving connecting rod 222 is fixedly connected with the knob 221, the driving connecting rod 222 is rotatably connected with the driven connecting rod 223, and the driven connecting rod 223 is rotatably connected with the driving piece 224. The driving knob 221 rotates to drive the driving link 222 to rotate, so that the driving link 222 drives the driven link 223 to move, and the driven link 223 drives the driving element 224 to reciprocate. Thus, when the driving knob 221 rotates and further drives the driving member 224 to move from the proximal end to the distal end, the puncture needle 300 can move from the proximal end to the distal end, so as to realize puncture of the puncture needle 300, and further, when the driving knob 221 rotates, the driving member 224 can be driven to move from the distal end to the proximal end, so as to enable the puncture needle 300 to move from the distal end to the proximal end, so as to realize retraction of the puncture needle 300, and the position of the puncture needle 300 is related to the rotation condition of the knob, so that the puncture position of the puncture needle 300 can be adjusted by adjusting the rotation condition of the knob.

Specifically, the conveying device further includes a driving spindle 226, the driving spindle 226 is rotatably connected to the handle body 210, the knob 221 is fixedly connected to the driving spindle 226, the driving link 222 is fixedly connected to the driving spindle 226, and the driving knob 221 rotates to drive the driving spindle 226, so that the driving link 222 is driven to rotate by the driving spindle 226.

The conveying device further comprises a rotating shaft 227, the driving connecting rod 222 is rotatably connected with the rotating shaft 227, and the driven connecting rod 223 is rotatably connected with the rotating shaft 227.

The conveying device further comprises a driving gear 228 and a driven gear 229, the driving gear 228 is fixedly connected with the driving spindle 226, the driven gear 229 is rotatably connected with the rotating shaft 227, the driving gear 228 and the driven gear 229 are meshed with each other, the driving spindle 226 can drive the driving gear 228 to rotate by rotating, so that the driving gear 228 drives the driven gear 229 to rotate, and the driven gear 229 is meshed with the driving gear 228 and rotates around the driving gear 228, so that the stability of the transmission mechanism can be improved.

The handle further comprises a sliding slot 230, the sliding slot 230 is fixedly disposed on the handle body 210, the driving member 224 is disposed in the sliding slot 230, and the driving member 224 can reciprocate along the sliding slot 230.

As shown in fig. 4, the handle further includes a tightening mechanism for pulling the coupling member 130 distally and proximally, such that the coupling member 130 is moved distally and proximally after release of the needle 300, thereby moving the distal anchor 120, which is fixedly attached to the coupling member 130, distally and proximally to effectively anchor the distal anchor 120 in the tissue.

The tightening device includes a first gear 241 and a second gear 242, the first gear 241 is fixedly connected to the driving spindle 226, the driving spindle 226 rotates to drive the first gear 241 to rotate, the second gear 242 is rotatably connected to the handle body 210, the second gear 242 is fixedly connected to the connecting member 130, the second gear 242 can pull the connecting member 130 to move from the distal end to the proximal end when rotating, the first gear 241 is an incomplete gear, that is, the outer circumferential surface of the first gear 241 includes a tooth surface and a non-tooth surface, the tooth surface is provided with a plurality of teeth, the non-tooth surface is not provided with teeth, for example, a smooth arc surface, and the first gear 241 and the second gear 242 can be switched between an engaged state and a non-engaged state. Since the first gear 241 is a incomplete gear, the first gear 241 and the second gear 242 can be changed from a non-meshing state to a meshing state, so that when the first gear 241 is driven to rotate, the second gear 242 can be selectively driven to rotate, thereby controlling the connecting element 130 to move from the distal end to the proximal end.

Specifically, in this embodiment, the process of delivering the puncture needle by the delivery device can be divided into a first stage and a second stage.

In the first stage, the rotation knob 221 can drive the driving member 224 to move from the proximal end to the distal end, so that the puncture needle 300 is driven by the driving member 224 to move from the proximal end to the distal end, and the puncture needle 300 is punctured; meanwhile, the non-tooth surface of the first gear 241 faces the second gear 242, the first gear 241 and the second gear 242 are in a non-meshed state, the first gear 241 is driven by the knob 221 to rotate, and the relative positions of the first gear 241 and the second gear 242 are changed. Preferably, from the beginning of the first stage to the end of the first stage, i.e. from the beginning of the proximal to distal movement of the driving member 224 to the end of the proximal to distal movement of the driving member 224, the first gear 241 rotates by a predetermined distance, and the predetermined distance is equal to the length of the non-toothed peripheral surface of the first gear 241, so that the connecting member 130 can be tightened at the beginning of the second stage.

In the second stage, the knob 221 is continuously rotated in the original direction to move the puncture needle 300 from the distal end to the proximal end, so that the puncture needle 300 is retracted; meanwhile, the first gear 241 and the second gear 242 are engaged, the first gear 241 drives the second gear 242 to rotate, and the second gear 242 drives the connecting member 130 to move from the distal end to the proximal end, so as to tighten the connecting member 130.

As described above, the retraction of the needle 300 is accomplished by moving the needle 300 distally to proximally when the driving member 224 is moved distally to proximally, and the engagement of the first gear 241 and the second gear 242 occurs during the distal to proximal movement of the driving member 224 (during the second stage), thereby allowing the tightening of the connector 130 during the retraction of the needle 300, i.e., the position adjustment of the distal anchor 120 by the tightening of the connector 130. Therefore, the puncture needle 300 can be driven to puncture by rotating the driving knob 221, the puncture needle 300 is retracted, and the connecting piece 130 is tightened while the puncture needle 300 is retracted, so that the operation steps and time can be reduced, and the operation efficiency can be improved.

Of course, in other embodiments, the design of the ratio of the tooth surface and the non-tooth surface of the first gear 241 and the corresponding relationship between the tooth surface and the non-tooth surface of the second gear 242 may be used to make the first gear 241 drive the second gear 242 to rotate after the puncture needle 300 is retracted, so as to tighten the connecting element 130, that is, the connecting element 130 is tightened during the second stage, rather than the connecting element 130 is tightened at the beginning of the second stage; still alternatively, in other embodiments, the second gear 242 may be designed as an incomplete gear, as long as the first gear 241 and the second gear 242 are in a non-meshed state in the process of moving the puncture needle from the proximal end to the distal end; still alternatively, the first gear 241 and the second gear 242 are operated independently of the conveying device, for example, by a control knob for controlling the rotation of the first gear 241; the utility model discloses do not limit to this.

Referring to fig. 5 and 6, fig. 5 is a schematic structural view of the distal anchor 120 according to an embodiment of the present invention, fig. 6 is a schematic structural view of the distal anchor 120 and the connecting member 130 according to an embodiment of the present invention, and the distal anchor 120 includes an anchor main body 121 and a bending portion 122 extending and bending from the anchor main body 121. The provision of the bend 122 may facilitate fixation of the distal anchor 120 within the tissue, reducing the risk of displacement of the distal anchor 120 within the tissue. The distal anchor 120 may be a metallic material or a polymeric material, and the material of the distal anchor 120 may be a degradable material or a non-degradable material.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a proximal anchor 110 according to an embodiment of the present invention, wherein the proximal anchor 110 includes a proximal main body 111 and a clamping portion 112 fixedly connected to the proximal main body 111. The clamping portion 112 may clamp the connector 130 to limit movement of the connector 130 relative to the proximal anchor 110. When the clip portion 112 and the connector 130 are separated from each other, the connector 130 and the proximal anchor 110 are separated from each other. The connector 130 is secured to the distal anchor 120 at one end prior to implantation and extends into the handle at the other end, and during implantation, after the connector 130 is secured to the proximal anchor 110, the portion of the connector 130 adjacent the proximal anchor 110 is sheared, and the delivery system and connector 130 are removed from the body.

Referring to fig. 8, fig. 9 and fig. 10, fig. 8 is a schematic structural view of a first puncture needle 300 according to an embodiment of the present invention, fig. 9 is a schematic structural view of a part of the first puncture needle 300 according to an embodiment of the present invention, fig. 10 is a schematic structural view of a distal end of the first puncture needle 300 according to an embodiment of the present invention, the puncture needle 300 includes a needle tube main body 310 and a connecting sleeve 320, and the connecting sleeve 320 is sleeved on the needle tube main body 310.

Referring to fig. 8, the needle tube body 310 includes a main body section 311 and a bent section 312, a distal end of the main body section 311 is fixedly connected to a proximal end of the bent section 312, the connecting sleeve 320 is sleeved on the main body section 311, and a distal end of the bent section 312 is a free end. Wherein, the curved section 312 is arc-shaped, which is convenient for the puncture needle 300 to puncture.

As shown in fig. 10, the distal end of the curved segment 312 has a sharp angle that facilitates penetration of the needle 300 through the prostate tissue.

Referring to fig. 11 and 12, fig. 11 is a sectional view of a conveying main shaft 600 according to an embodiment of the present invention, and fig. 12 is a schematic view of a partial structure of the conveying main shaft according to an embodiment of the present invention, in which the conveying main shaft 600 includes a conveying main body, a puncture needle channel 610, a proximal anchoring conveying channel 620, and an endoscope channel 630, and the puncture needle channel 610, the proximal anchoring conveying channel 620, and the endoscope channel 630 are disposed in the conveying main body.

Referring to fig. 13, fig. 13 is a schematic view of a proximal carrier 400 according to an embodiment of the present invention, the delivery system further includes a proximal carrier 400 for carrying the proximal anchor 110, wherein the proximal carrier 400 is disposed in the proximal anchor delivery channel 620.

As shown in fig. 13, the proximal carrier 400 includes a proximal anchor loading window 410, a proximal anchor release window 420, the proximal anchor loading window 410 being disposed proximally of the proximal anchor release window 420.

Referring to fig. 14, fig. 14 is a schematic structural diagram of a proximal pushing rod 500 according to an embodiment of the present invention, and the delivery system further includes a proximal pushing rod 500, the proximal pushing rod 500 is used for pushing the proximal anchor 110 to move in the proximal loading member 400, and the proximal pushing rod 500 is disposed in the proximal anchor delivery channel 620. The proximal push rod 500 may push the proximal anchor 110 from the proximal anchor loading window 410 toward the proximal anchor release window 420.

The delivery system further comprises a blade 430, the blade 430 being disposed on the proximal carrier 400, the blade 430 being configured to sever the connector 130.

The handle further includes a spindle holder 700, and the spindle holder 700 is used to fix the delivery spindle 600 to the handle body 210.

Referring to fig. 15, fig. 15 is a schematic structural view of a spindle holder 700 according to an embodiment of the present invention, the spindle holder 700 includes an endoscope through hole 710 corresponding to the endoscope channel 630, a puncture needle through hole 720 corresponding to the puncture needle channel 610, and a proximal anchoring conveying channel through hole 730 corresponding to the proximal anchoring conveying channel 620. The main shaft holder 700 is fixedly connected to the handle body 210, the endoscope can pass through the endoscope passage 630 and pass through the endoscope through hole 710, the distal end of the puncture needle 300 can pass through the puncture needle passage 610 and pass through the endoscope through hole 720, and the proximal anchoring delivery passage 620 passes through the proximal anchoring delivery passage 730. The proximal anchor 110 is disposed in the proximal anchor loading window 410 of the proximal carrier 400 before being released, when released, the proximal push rod 500 pushes the proximal anchor 110 to move to the proximal anchor release window 420, thereby releasing the proximal anchor 110, the blade 430 is disposed at the proximal anchor release window, after releasing the proximal anchor 110, the proximal anchor 110 is clamped with the connecting member 130, the connecting member 130 contacts the blade 430 under the pushing of the proximal push rod 500, the blade 430 cuts off the connecting member 130, the implantation of the proximal anchor 110 is completed, and the implantation of the anchoring device 100 is completed.

Referring to fig. 16, fig. 16 is a schematic structural diagram of an endoscope fixing device 800 according to an embodiment of the present invention, the handle further includes an endoscope fixing portion fixedly disposed on the handle body 210, and the endoscope fixing device 800 is configured to fixedly dispose an endoscope on the endoscope fixing portion.

Referring to fig. 17, fig. 17 is a schematic structural diagram of a sheath holder according to an embodiment of the present invention, the sheath holder is used for fixing a sheath around the spindle.

The handle further comprises a protective sleeve, and the protective sleeve is arranged on the outer side of the conveying main shaft 600.

The present embodiment also provides a delivery system comprising the above handle.

In the above embodiments, the handle and delivery system may also be used to deliver other implants.

The "proximal" and "distal" in the above embodiments are relative orientations, relative positions, directions of elements or actions with respect to each other from the perspective of a physician using the medical device, although "proximal" and "distal" are not intended to be limiting, but "proximal" generally refers to the end of the medical device that is closer to the physician during normal operation, and "distal" generally refers to the end that is first introduced into the patient. Furthermore, the term "or" in the above embodiments is generally used in the sense of comprising "and/or" unless otherwise explicitly indicated.

As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the content clearly dictates otherwise. As used in this specification and the appended claims, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims (11)

1. The utility model provides a handle, includes the handle body, and sets up conveyor in the handle body, conveyor is used for carrying the pjncture needle, a serial communication port, conveyor includes knob, drive mechanism and driving piece, the knob with the handle body rotates to be connected, the driving piece with handle body sliding connection, the driving piece with pjncture needle fixed connection, the rotation of knob can drive the drive mechanism drive the driving piece reciprocating motion.

2. The handle of claim 1, wherein the transmission mechanism includes a drive link and a driven link, the drive link being fixedly coupled to the knob, the drive link being rotatably coupled to the driven link, and the driven link being rotatably coupled to the drive member.

3. The handle of claim 2, wherein the delivery device further comprises a drive spindle and a rotation shaft, the drive spindle being rotatably coupled to the handle body, the knob being fixedly coupled to the drive spindle, the drive link being rotatably coupled to the rotation shaft, and the driven link being rotatably coupled to the rotation shaft.

4. The handle of claim 3, wherein the delivery device further comprises a drive gear fixedly coupled to the drive shaft and a driven gear rotatably coupled to the rotatable shaft, the drive gear and the driven gear being intermeshed.

5. The handle of claim 1, further comprising a slide slot fixedly disposed on the handle body, wherein the driving member is disposed in the slide slot, and wherein the driving member is reciprocally movable along the slide slot.

6. The handle of claim 1, further comprising a tightening mechanism for pulling a connector from the distal end to the proximal end.

7. The handle of claim 6, wherein the tightening mechanism is coupled to the delivery device and adapted to pull the coupling member distally to proximally by the actuator.

8. The handle of claim 7, wherein the tightening mechanism includes a first gear and a second gear having an engaged state, the second gear for pulling the connecting member from the distal end to the proximal end.

9. The handle of claim 8, wherein the transmission mechanism includes a drive link and a driven link, the drive link being fixedly coupled to the knob, the drive link being rotationally coupled to the driven link, the driven link being rotationally coupled to the drive member; the conveying device further comprises a driving main shaft, the driving main shaft is rotatably connected with the handle body, the knob is fixedly connected with the driving main shaft, and the driving connecting rod is fixedly connected with the driving main shaft; the first gear is fixedly connected with the driving main shaft, the first gear can be driven to rotate by the rotation of the driving main shaft, at least one of the first gear and the second gear is an incomplete gear, the second gear is rotatably connected with the handle body, and the first gear and the second gear can be switched between an engaged state and a non-engaged state.

10. The handle of claim 9, wherein the second gear is configured to draw the connecting member to reciprocate when the first gear and the second gear are engaged and rotated.

11. A delivery system comprising a handle as claimed in any one of claims 1 to 10.

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