CN112137781A

CN112137781A - Handle and delivery system

Info

Publication number: CN112137781A
Application number: CN201910580244.4A
Authority: CN
Inventors: 汪振; 富佳伟; 傅振中; 阙亦云; 姜在来
Original assignee: Microport Urocare Shanghai Co Ltd
Current assignee: Microport Urocare Shanghai Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-12-29

Abstract

The invention provides a handle and a delivery system for delivering a puncture needle and anchoring a near end, wherein the handle comprises a handle main body and a main shaft, and the handle main body is connected with the main shaft; the conveying mechanism comprises a fixing piece, a driving piece and a conveying piece, wherein the driving piece is movably connected with the fixing piece, the fixing piece is fixed in the handle main body, the conveying piece is slidably arranged in the handle main body, and the driving piece is fixedly connected with the conveying piece and is used for driving the conveying piece to move along the axial direction of the main shaft. The position of the puncture needle can be adjusted by adjusting the delivery mechanism since the delivery mechanism can be used to push the puncture needle to reciprocate, while the distal anchor is typically disposed in the puncture needle so that the position of the anchor can be adjusted by the handle. Since the delivery mechanism can be used to push the proximal anchor to move back and forth, the position of the proximal anchor can be adjusted by adjusting the delivery mechanism, and thus the position of the anchoring device can be adjusted by the handle.

Description

Handle and delivery system

Technical Field

The invention relates to the technical field of medical instruments, in particular to a handle and a conveying system.

Background

Among the diseases causing urination disorders in middle-aged and elderly men, Benign Prostatic Hyperplasia (BPH) is the most common disease. Benign Prostatic Hyperplasia (BPH) is manifested primarily as a hyperplasia of the interstitial and glandular components of the prostate histologically, as an anatomical enlargement of the prostate (BPE), as a clinical symptom with predominant Lower Urinary Tract Symptoms (LUTS), and as a 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 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.

Disclosure of Invention

The invention aims to provide a handle and a delivery system, which aim to solve the problem that the existing handle and delivery system do not have the function of adjusting the position of an implant.

In order to solve the above technical problems, the present invention provides a handle, comprising a handle main body; a main shaft connected with the handle body; and the conveying mechanism comprises a fixing part, a driving part and a conveying part, the driving part is movably connected with the fixing part, the fixing part is fixed in the handle main body, the conveying part is slidably arranged in the handle main body, and the driving part is fixedly connected with the conveying part and is used for driving the conveying part to move along the axial direction of the main shaft.

Optionally, the driving element is used for driving the conveying element to reciprocate along the axial direction of the main shaft.

Optionally, the fixing member is in threaded connection with the driving member.

Optionally, the fixing part is a nut, the driving part is a screw, the number of the nuts is two, the two nuts are respectively fixed in the handle body, and the screw is respectively in threaded connection with the two nuts.

Optionally, the fixing part is a supporting piece and a supporting rod, the driving piece is a sliding sleeve, the supporting piece is fixedly arranged in the handle, the supporting rod is fixedly arranged on the supporting piece, the sliding sleeve is arranged on the supporting rod and is in sliding connection with the supporting rod, and the sliding sleeve is fixedly connected with the conveying piece and is used for driving the conveying piece to move.

Optionally, the number of the supporting pieces is two, the two supporting pieces are respectively arranged in the handle, and the supporting rods are respectively fixedly connected with the two supporting pieces.

Optionally, the fixing part is a slide rail, the driving part includes a limiting device, a slider and a spring, the slide rail is fixedly disposed in the handle body, the slider is slidably connected to the slide rail, the slider is fixedly connected to one end of the spring, the other end of the spring is fixedly connected to the handle body, and the slider is fixedly connected to the conveying part and used for driving the conveying part to move; the conveying mechanism is provided with an initial state and a release state, the limiting device limits the sliding block to move in the initial state, the spring generates elastic deformation, and in the release state, the limiting device is separated from the sliding block, and the spring restores the elastic deformation.

Optionally, the limiting device is a shift lever.

Optionally, the conveying mechanism is used for conveying the puncture needle, and the conveying piece is fixedly connected with the puncture needle.

Optionally, the delivery mechanism is configured to deliver a proximal anchor, and the delivery member is fixedly connected to the proximal anchor.

The invention also provides a conveying system which comprises the handle.

The invention provides a conveying system which comprises the handle.

The handle and the conveying system provided by the invention have the following beneficial effects:

first, since the first delivery mechanism is used for pushing, the position of the puncture needle can be adjusted by adjusting the first delivery mechanism, while the distal anchor is usually provided in the puncture needle, so the position of the anchoring device can be adjusted by the handle.

Secondly, since the second delivery mechanism is used to push the proximal anchor to move back and forth, the position of the proximal anchor can be adjusted by adjusting the second delivery mechanism, and thus the position of the anchoring device can be adjusted by the handle.

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 cross-sectional view of a handle according to a first embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a spindle holder according to an embodiment of the present invention;

FIG. 5 is a schematic view of an endoscope retainer according to one embodiment of the present invention;

FIG. 6 is a schematic structural view of a sheath holder according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a lancet in accordance with one embodiment of the present invention;

FIG. 8 is a partial schematic view of a lancet in accordance with one embodiment of the present invention;

FIG. 9 is a schematic view of the configuration of the distal end of the needle in accordance with one embodiment of the present invention;

FIG. 10 is a schematic sectional view of a handle according to a second embodiment of the present invention;

fig. 11 is a schematic sectional view of a handle according to a third 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; 130-a connector;

the first embodiment is as follows:

201-a main shaft; 210-a handle body;

221-a first screw; 222-a first nut; 223-a puncture needle delivery member;

231-a driving lever; 232-a slide block; 233-slide rail; 234-a spring; 235-a proximal anchoring delivery member; 236-a fixed block; 237-fixed slide;

240-spindle holder; 241-endoscope through hole; 242-puncture needle through hole; 243-proximal anchoring delivery channel through hole;

250-an endoscope channel;

260-proximal anchoring of the delivery channel;

261-puncture needle channel

270-endoscope securing section; 280-an endoscope holder;

290-puncture needle; 291-a needle body; 292-a body section; 293-bend section; 294-connecting sleeve.

Example two:

301-a main shaft; 310-a handle body;

320-a first conveying mechanism;

330-a second conveying mechanism; 331-a second screw; 332-a second nut; 333-proximal anchoring of the delivery member.

Example three:

401-main shaft; 410-a handle body;

420-first conveying mechanism

430-a second conveying mechanism; 431-a first support; 432-a second support; 433-a support bar; 434-sliding sleeve; 435-proximal anchoring delivery member.

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 device 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 device 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 anchor 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, in the conventional anchoring device 100, the puncture needle is released once and the proximal anchoring 110 is also released once during the implantation process by the delivery device, so that the implantation position of the puncture needle and the implantation position of the proximal anchoring 110 are not adjustable, and the implantation position of the puncture needle is not adjustable, so that the implantation position of the distal anchoring 120 is not adjustable, which is inconvenient for the operation.

In view of this, the present invention provides a handle for delivering a puncture needle and delivering a proximal anchor, the structure for delivering the puncture needle being configured to allow the position of the puncture needle to be adjusted, and the structure for delivering the proximal anchor being configured to allow the position of the proximal anchor to be adjusted, thereby allowing the position of the anchor to be adjusted during implantation.

Correspondingly, the invention also provides a conveying system comprising the handle.

The handle and delivery system of the present invention are described in further detail below with reference to the figures and the specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

Example one

The present embodiment provides a handle. Referring to fig. 3, fig. 3 is a schematic cross-sectional structure view of a handle in a first embodiment of the present invention, the handle includes a main shaft 201 and a handle body 210, a delivery mechanism fixedly disposed in the handle body 210, the delivery mechanism includes a fixing member, a driving member and a delivery member, the driving member is movably connected to the fixing member, the fixing member is fixed in the handle body 210, the delivery member is slidably disposed in the handle body, wherein the delivery mechanism for pushing the puncture needle 290 to reciprocate is a first delivery mechanism, and the delivery mechanism for pushing the proximal anchor 110 to move is a second delivery mechanism.

The first transportation mechanism converts the rotational motion into the linear motion to drive the puncture needle 290 to reciprocate, and the driving manner of the first transportation mechanism may be referred to as rotational driving.

Referring to fig. 3, the first conveying mechanism is used for conveying a puncture needle, the conveying member is fixedly connected with the puncture needle, the fixing member has an internal thread, the driving member has an external thread, and the fixing member is in threaded connection with the driving member. Preferably, the fixing member is a first nut 222, the driving member is a first screw 221, the delivery member is a puncture needle delivery member 223, the number of the first nuts 222 is two, and the two first nuts 222 are respectively and fixedly connected with the handle body 210. The first screw 221 is respectively in threaded connection with the two first nuts 222, the first nuts 222 are fixedly connected with the handle body 210, the first screw 221 is fixedly connected with the puncture needle delivery member 223, and the puncture needle delivery member 223 is fixedly connected with the puncture needle 290.

By driving the first screw 221 to rotate, the first screw 221 reciprocates under the action of the first nut 222, so that the puncture needle conveying member 223 fixedly connected with the first screw 221 can be driven to reciprocate, and the puncture needle 290 fixedly connected with the puncture needle conveying member 223 can be driven to reciprocate along the axial direction of the main shaft 201.

Since the first screw 221 can be reciprocally moved in one direction with respect to the first nut 222 by adjusting the rotational direction of the first screw 221, when the puncture needle 290 is required to be moved toward the distal end, the first screw 221 can be driven to rotate in a predetermined direction, when the puncture needle 290 is required to be moved toward the proximal end, the first screw 221 can be driven to rotate in a direction opposite to the predetermined direction, and the position of the puncture needle 290 can be adjusted by adjusting the amount of displacement of the first screw 221 in the predetermined direction and in the direction opposite to the predetermined direction, that is, the position of the puncture needle 290 can be adjusted.

As shown in fig. 3, one end of the first screw 221 is disposed outside the handle body 210, so that the operator manually drives the first screw 221 to rotate. In addition, the portion of the first screw 221 disposed outside the handle body 210 may be used as an operation knob, which is convenient for an operator to operate.

The second delivery mechanism is actuated by releasing the spring to drive the proximal anchor 110, which may be referred to as spring-driven.

Referring to fig. 3, the second delivery mechanism is used for delivering the proximal anchor, the fixing element is a slide rail 233, the driving element includes a limiting device, preferably, the limiting device is a shift lever 231, a slide block 232 and a spring 234, the delivery element is a proximal anchor delivery element 235, the slide rail 233 is fixedly disposed on the handle main body 210, the slide block 232 is slidably connected with the slide rail 233, the slide block 232 is fixedly connected with one end of the spring 234, the other end of the spring 234 is fixedly connected with the handle main body 210, the slide block 232 is further fixedly connected with the proximal anchor delivery element 235, the proximal anchor delivery element 235 is used for pushing the proximal anchor 110, and the shift lever 231 is rotatably connected with the handle main body 210. The second conveying mechanism has an initial state and a release state, and in the initial state, the shift lever 231 is clamped with the sliding block 232 and used for limiting the movement of the sliding block 232, and the spring 234 is elastically deformed; in the released state, the lever 231 is separated from the slider 232, and the spring 234 is restored to the elastic deformation, wherein the lever 231 is separated from the slider 232 by rotating the lever 231 in the initial state.

Before releasing the proximal anchor 110, the handle is in an initial state, the lever 231 is engaged with the slider 232, and the spring 234 is elastically deformed. The shift lever 231 in the initial state is rotated to separate the shift lever 231 from the slider 232, so that the spring 234 is elastically deformed, one end of the spring 234 is fixedly connected with the handle body 210, the other end of the spring 234 is fixedly connected with the slider 232, and the slider 232 slides in the slide rail 233 under the restoring force of the spring 234, so that the slider 232 drives the proximal anchoring conveyer 235 fixedly connected with the slider 232 to move, and the proximal anchoring conveyer 235 drives the proximal anchoring 110 to move.

As shown in fig. 3, one end of the shift lever 231 is disposed outside the handle body 210, so that the operator manually drives the shift lever 231 to rotate. The portion of the lever 231 disposed outside the handle body 210 can be used as an operation knob, which is convenient for an operator to operate.

The second delivery mechanism further comprises a fixing block 236, the fixing block 236 is fixedly connected with the handle body 210, and the other end of the spring 234 is fixedly connected with the fixing block 236.

The second conveying mechanism further includes a fixed slide 237, the fixed slide 237 is fixedly disposed on the handle body 210, and the fixed block 236 is fixedly disposed in the fixed slide 237.

Referring to fig. 3 and 4, fig. 4 is a schematic structural view of a spindle holder 240 according to a first embodiment of the present invention, and the handle further includes the spindle holder 240. The main shaft holder 240 includes an endoscope through-hole 241, a puncture needle through-hole 242, and a proximal anchor delivery channel through-hole 243. The main shaft 201 comprises an endoscope channel 250, a puncture needle channel 261 and a proximal anchoring conveying channel 260, the main shaft 201 is fixedly connected with the handle by the main shaft fixer 240, the endoscope can pass through the endoscope channel 250 and penetrate out of the endoscope through hole 241, the distal end of the puncture needle 290 can pass through the puncture needle channel 261 and penetrate out of the puncture needle through hole 242, and the proximal anchoring conveying channel 260 passes through the proximal anchoring conveying channel through hole 243. The proximal anchor 110 is disposed in the proximal anchor delivery channel 260 prior to release, upon which the proximal anchor delivery member 235 pushes the proximal anchor 110 disposed in the proximal anchor delivery channel 260 to move, thereby releasing the proximal anchor 110.

Typically, the distal anchor 120 and the connector 130 are disposed within a puncture needle 290, and the puncture needle 290 is reciprocally movable along the axial direction of the main shaft 201 by a first delivery mechanism, such as by pushing the puncture needle 290 through the first delivery mechanism for multiple advancements and withdrawals. The proximal anchor 110 is disposed within the proximal delivery channel and is movable within the proximal delivery channel by a second delivery mechanism.

Referring to fig. 3 and 5, fig. 5 is a schematic structural view of an endoscope holder 280 according to a first embodiment of the present invention, the handle includes the endoscope holder 280, the endoscope holder 280 is fixedly disposed on the handle body 210, and the endoscope holder 280 is used for fixedly disposing the endoscope in the endoscope channel 250.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a sheath holder according to an embodiment of the present invention, the sheath holder is used for fixedly sleeving the sheath around the spindle 201.

Referring to fig. 7, 8 and 9, fig. 7 is a schematic structural diagram of a puncture needle 290 in a first embodiment of the present invention, fig. 8 is a schematic partial structural diagram of the puncture needle 290 in the first embodiment of the present invention, fig. 9 is a schematic structural diagram of a distal end of the puncture needle 290 in the first embodiment of the present invention, the puncture needle 290 includes a needle tube body 291 and a connecting sleeve 294, the connecting sleeve 294 is sleeved on the needle tube body 291, the connecting sleeve 294 is fixedly connected to the handle body 210, and the needle tube body 291 is fixedly connected to the puncture needle delivery member 223.

Referring to fig. 7 and 8, the needle tube body 291 includes a main body section 292 and a bent section 293, a distal end of the main body section 292 is fixedly connected to a proximal end of the bent section 293, the connecting sleeve 294 is sleeved on the main body section 292, and a distal end of the bent section 293 is a free end. Wherein the curved portion 293 is curved to facilitate the insertion of the needle 290.

As shown in fig. 9, the distal end of the curved segment 293 is pointed to facilitate penetration of the needle 290 through the prostate tissue.

Example two

The present embodiment provides a handle. The handle of this embodiment differs from the handle of the first embodiment in that the second delivery mechanism 330 drives the proximal anchor 110 in a reciprocating manner by converting rotational motion into linear motion, and the manner in which the second delivery mechanism 330 is driven may be referred to as rotational drive.

Referring to fig. 10, fig. 10 is a schematic cross-sectional view of a handle according to a second embodiment of the present invention, the handle includes a main shaft 301 and a handle body 310, a delivering mechanism fixedly disposed in the handle body 310, the delivering mechanism includes a fixing member, a driving member and a delivering member, the driving member is movably connected to the fixing member, the fixing member is fixed in the handle body 310, the delivering member is slidably disposed in the handle body 310, the delivering mechanism for pushing the puncture to reciprocate is a first delivering mechanism 320, and the delivering mechanism for pushing the proximal anchor 110 to reciprocate is a second delivering mechanism 330.

The first conveying mechanism 320 converts the rotary motion into the linear motion to drive the puncture needle to reciprocate, and the driving mode of the first conveying mechanism 320 can be called as rotary driving. The specific structure of the first conveying mechanism 320 is similar to that of the first conveying mechanism in the first embodiment, and is not described herein again.

The second delivery mechanism 330 converts the rotational motion into a linear motion to drive the puncture needle to reciprocate, and the driving manner of the second delivery mechanism 330 may also be referred to as rotational driving. That is, in the present embodiment, the first delivery mechanism 320 and the second delivery mechanism 330 drive the puncture needle and the proximal anchor 110 to reciprocate, respectively, in the same manner.

Referring to fig. 10, the second delivery mechanism 330 is adapted to deliver a proximal anchor to which the delivery member is fixedly attached, the fixing member is internally threaded and the driving member is externally threaded, and the fixing member is threadedly attached to the driving member. Preferably, the fixing member is a second nut 332, the driving member is a second screw 331, the delivery member is a proximal anchoring delivery member 333, the number of the second nuts 332 is two, and the two second nuts 332 are respectively fixedly connected with the handle body 310. The second screw 331 is respectively in threaded connection with the two second nuts 332. The second nut 332 is screwed with the second screw rod 331, the second nut 332 is fixedly connected with the handle body 310, the second screw rod 331 is fixedly connected with the proximal anchor delivery element 333, and the proximal anchor delivery element 333 is used for pushing the proximal anchor 110 to reciprocate.

By driving the second screw rod 331 to rotate, the second screw rod 331 is reciprocated by the second nut 332, so that the proximal anchoring transmission member 333 fixedly connected to the second screw rod 331 can be driven to reciprocate along the axial direction of the main shaft 301,

since the second screw 331 can be reciprocated in one direction relative to the second nut 332 by adjusting the rotation direction of the second screw 331, when the proximal anchor 110 is required to be moved distally, the second screw 331 can be driven to rotate in a predetermined direction, when the proximal anchor 110 is required to be moved proximally, the second screw 331 can be driven to rotate in a direction opposite to the predetermined direction, and the position of the proximal anchor 110 can be adjusted by adjusting the amount of displacement of the second screw 331 in the predetermined direction and in the direction opposite to the predetermined direction, that is, the position of the proximal anchor 110 can be adjusted.

As shown in fig. 10, one end of the second screw 331 is disposed outside the handle body 310, so that the operator manually drives the second screw 331 to rotate. The second screw 331 is provided at an outer portion of the handle body 310 and is used as an operation knob, which is convenient for an operator to operate.

EXAMPLE III

The present embodiment provides a handle. The handle in this embodiment differs from the handle in the first embodiment in that the second delivery mechanism 430 drives the proximal anchor 110 to reciprocate by way of a push-feed.

Referring to fig. 11, fig. 11 is a schematic cross-sectional structural view of a handle in the third embodiment of the present invention, the handle includes a main shaft 401 and a handle body 410, a delivery mechanism fixedly disposed in the handle body 410, the delivery mechanism includes a fixing member, a driving member and a delivery member, the driving member is movably connected to the fixing member, the fixing member is fixed in the handle body 410, the delivery member is slidably disposed in the handle body 410, the delivery mechanism for pushing the puncture to reciprocate is the first delivery mechanism 410, and the delivery mechanism for pushing the proximal anchor 110 to reciprocate is the second delivery mechanism 430.

The first delivery mechanism 420 converts the rotary motion into the linear motion to drive the puncture needle to reciprocate, and the driving mode of the first delivery mechanism 420 can be called as rotary driving. The specific structure of the first conveying mechanism 420 is similar to that of the first conveying mechanism in the first embodiment, and is not repeated here.

The second delivery mechanism 430 drives the proximal anchor 110 to reciprocate by way of a push-feed. Specifically, the second delivery mechanism 430 comprises a fixing member including a first support member 431, a second support member 432 and a support rod 433, the driving member is a sliding sleeve 434, and the pushing member is a proximal anchoring delivery member 435. The first support 431 and the second support 432 are fixedly connected with the handle body 410, the support rod 433 is fixedly arranged on the first support 431 and the second support 432, the sliding sleeve 434 is sleeved on the support rod 433, the sliding sleeve 434 is slidably connected with the support rod 433, the sliding sleeve 434 is fixedly connected with the proximal anchoring delivery member 435, and the proximal anchoring delivery member 435 is used for driving the proximal anchoring 110 to reciprocate.

Referring to fig. 11, the sliding sleeve is exposed outside the handle body 410, and preferably, a window is formed on the handle body 410 corresponding to the sliding sleeve 434, and the sliding sleeve 434 can slide on the window, so that the proximal anchor delivery member 435 can be driven to reciprocate by driving the sliding sleeve 434 to reciprocate on the support rod 433, and the proximal anchor 110 can be further driven to move. Since the position of the sliding sleeve 434 is manually adjustable, the position of the proximal anchor 110 can be manually adjusted by adjusting the position of the sliding sleeve 434.

Example four

This embodiment provides a delivery system comprising the handle of any of the above embodiments.

In the present invention, the driving modes of the first conveying mechanism and the second conveying mechanism include, but are not limited to, three modes of spring driving, push feeding and rotation driving, and in one handle, the first conveying mechanism and the second conveying mechanism may adopt any one of the above driving modes.

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 purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.

Claims

1. A handle is characterized by comprising

A handle body;

a main shaft connected with the handle body; and

the conveying mechanism comprises a fixing piece, a driving piece and a conveying piece, wherein the driving piece is movably connected with the fixing piece, the fixing piece is fixed in the handle main body, the conveying piece is slidably arranged in the handle main body, and the driving piece is fixedly connected with the conveying piece and is used for driving the conveying piece to move along the axial direction of the main shaft.

2. The handle of claim 1, wherein the drive member is configured to drive the transport member to reciprocate along an axial direction of the spindle.

3. The handle of claim 2, wherein the securing member is threadably connected to the driving member.

4. The handle of claim 3, wherein the fixing member is a nut, the driving member is a screw, the number of the nuts is two, two of the nuts are fixed in the handle body, and the screw is in threaded connection with two of the nuts.

5. The handle of claim 1, wherein the fixing member is a support member and a support rod, the driving member is a sliding sleeve, the support member is fixedly disposed in the handle, the support rod is fixedly disposed on the support member, the sliding sleeve is slidably disposed on the support rod, and the sliding sleeve is fixedly connected to the conveying member and is used for driving the conveying member to move.

6. The handle according to claim 5, wherein the number of the supporting members is two, two of the supporting members are respectively disposed in the handle, and the supporting rods are respectively fixedly connected to the two supporting members.

7. The handle according to claim 1, wherein the fixed member is a slide rail, the driving member includes a position-limiting device, a slide block and a spring, the slide rail is fixedly disposed in the handle body, the slide block is slidably connected to the slide rail, the slide block is fixedly connected to one end of the spring, the other end of the spring is fixedly connected to the handle body, and the slide block is fixedly connected to the conveying member and is used for driving the conveying member to move;

the conveying mechanism is provided with an initial state and a release state, the limiting device limits the sliding block to move in the initial state, the spring generates elastic deformation, and in the release state, the limiting device is separated from the sliding block, and the spring restores the elastic deformation.

8. The handle of claim 7, wherein the limiting means is a toggle lever.

9. The handle according to any of claims 1 to 6, wherein the delivery mechanism is adapted to deliver a puncture needle, and the delivery member is fixedly connected to the puncture needle.

10. The handle according to any of claims 1 to 8, wherein the delivery mechanism is adapted to deliver a proximal anchor, the delivery member being fixedly connected to the proximal anchor.

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