CN115068168A - Pressing and holding machine and pressing and holding method - Google Patents

Abstract

The invention belongs to the field of medical instruments and discloses a press-holding machine and a press-holding method, wherein the press-holding machine comprises a fixed cover, a rotating cover, a water absorbing part and a plurality of clamping parts; the rotating cover is sleeved outside the fixed cover and can be rotatably arranged relative to the fixed cover; the clamping pieces are arranged in the fixed cover in the circumferential direction and can move in the radial direction of the fixed cover, the tail ends of the clamping pieces are surrounded to form a press-holding opening, the rotating cover rotates to drive the clamping pieces to move in the radial direction of the fixed cover, so that the tail ends of the clamping pieces are close to or far away from each other, and the press-holding opening is reduced or enlarged; the water absorbing piece is arranged at the tail end of the clamping piece, and the water absorbing piece is extruded when the tail end of the clamping piece is close to each other. According to the invention, the water absorbing part is arranged at the tail end of the clamping part, when the valve is pressed and held, the inner diameter of the pressing and holding opening is reduced, the tail ends of the clamping parts are close to each other to extrude the water absorbing part, and the normal saline in the water absorbing part is extruded, so that the pressed and held part is always soaked in the normal saline, the pressing and holding machine does not need to be released repeatedly in the pressing and holding process, and the operation is simple.

Description

Pressing and holding machine and pressing and holding method

Technical Field

The invention relates to the technical field of medical instruments, in particular to a crimping machine and a crimping method.

Background

With the expanding of the application range of the ball valve in the heart valve replacement operation, how to install the ball valve on the conveyor of the valve replacement operation quickly and effectively becomes a problem that important attention needs to be paid at the present stage. One such solution is a valve press-and-grip machine.

However, since the valve cannot leave the liquid environment for a long time and the existing squeeze-grip machine cannot store water, the squeeze-grip machine needs to be released repeatedly in the squeezing process so as to inject the valve with normal saline, which not only wastes time, but also is not beneficial to the operation.

Disclosure of Invention

The invention aims to provide a squeezing and holding machine and a squeezing and holding method, which can inject physiological saline into a squeezed and held piece in the squeezing and holding process without repeatedly releasing the squeezing and holding machine, simplify the operation and save the operation time.

The technical scheme provided by the invention is as follows:

in one aspect, a crimping machine is provided, comprising:

a fixed cover;

the rotating cover is sleeved outside the fixed cover and can be rotatably arranged relative to the fixed cover;

the clamping pieces are arranged in the fixed cover in the circumferential direction and can move in the radial direction of the fixed cover, the tail ends of the clamping pieces surround and form a pressing and holding opening for pressing and holding the piece to be pressed and held, and the rotating cover drives the clamping pieces to move in the radial direction of the fixed cover when rotating, so that the tail ends of the clamping pieces are close to or far away from each other, and the pressing and holding opening is reduced or enlarged;

the water absorbing piece is arranged at the tail end of the clamping piece, and when the tail end of the clamping piece is close to each other, the clamping piece extrudes the water absorbing piece.

Further preferably, the water storage device also comprises a water storage part and a locking part;

a first limiting hole is formed in the rotating cover, and a second limiting hole corresponding to the first limiting hole is formed in the fixed cover;

the water storage part is sleeved outside the clamping part and fixedly connected with the fixing cover, the water storage part is provided with a water storage tank, a third limiting hole communicated with the water storage tank and a water outlet communicated with the water storage tank, the third limiting hole is communicated with the second limiting hole, and the water outlet faces the water absorbing part;

the locking piece is inserted in the first limiting hole, the second limiting hole and the third limiting hole in sequence and used for locking the rotating cover and the fixed cover and sealing the third limiting hole.

Further preferably, the aperture of the third limiting hole is smaller than the aperture of the second limiting hole, and the third limiting hole is clamped in the second limiting hole.

Further preferably, the water storage member is of an annular structure, and a plurality of water outlets are uniformly distributed on the inner wall of the water storage member along the circumferential direction.

Further preferably, the number of the water absorbing pieces is multiple, and the water absorbing pieces and the clamping pieces are arranged in a one-to-one correspondence manner.

Preferably, the tail end of each clamping piece is of a concave structure, the concave structures of the clamping pieces are sequentially arranged along the circumferential direction, the water absorbing piece is arranged at the concave structure of each clamping piece, and when the pressing and holding port gradually shrinks, the adjacent two concave structures gradually approach and cling to each other to extrude the water absorbing piece.

Further preferably, a spiral slideway is arranged on the rotating cover;

the fixed cover is provided with a sliding groove which extends along the radial direction of the fixed cover;

the clamping piece is provided with a first bulge and a second bulge, the first bulge is slidably arranged in the sliding groove, and the second bulge is slidably connected with the spiral slideway;

when the rotating cover rotates, the second protrusion slides in the spiral slideway and drives the first protrusion to slide in the sliding groove, so that the clamping piece moves along the radial direction of the fixed cover.

Further preferably, still be equipped with the bar spout on the holder, the bar spout first arch with the second is protruding to be set up the head end of holder just is located the same face of holder, fixed covering is equipped with the edge the fixed radial extension's of lid sliding guide, sliding guide with bar spout sliding connection.

Further preferably, the fixed cover comprises two fixed cover split bodies, the two fixed cover split bodies are mutually butted to form an accommodating cavity, the clamping piece and the water storage piece are respectively arranged in the accommodating cavity, and the clamping piece is positioned on the inner side of the water storage piece.

Further preferably, the portable terminal further comprises a base and a support frame, the support frame is fixed on the base, the rotating cover is rotatably arranged on the support frame, the fixing cover is fixedly connected with the support frame, a first through hole is formed in the support frame, a second through hole is formed in the fixing cover, a third through hole is formed in the rotating cover, and the pressing and holding holes are respectively arranged corresponding to the first through hole, the second through hole and the third through hole.

In another aspect, a squeezing method of a squeezing machine is also provided, including:

placing the valve in the crimping port;

rotating the rotating cover to drive the tail ends of the clamping pieces to approach each other, and reducing the pressing and holding opening to clamp the valve;

after the tail ends of the clamping pieces are close to each other, the clamping pieces extrude the water absorbing pieces arranged at the tail ends of the clamping pieces, so that the normal saline stored in the water absorbing pieces is released and soaks the valve;

after the pressing and holding are finished, the rotating cover is rotated reversely, and the valve is taken out.

Further preferably, the method further comprises the following steps:

taking out the lock catches inserted in the first limiting hole, the second limiting hole and the third limiting hole;

and injecting normal saline into the water storage tank of the water storage piece through the first limiting hole, the second limiting hole and the third limiting hole, and inserting the lock catch back after the pressing and holding is completed.

The invention has the technical effects that: through set up the piece that absorbs water at the holder tail end, when pressing and holding the valve, press and hold a mouthful internal diameter and reduce, the holder is toward pressing and holds a mouthful center removal, and the clearance between the holder at this moment reduces, and the holder tail end can be close to each other and absorb water with the extrusion, extrudes the inside normal saline of piece that absorbs water, makes to be pressed and holds the piece and soak in normal saline all the time, presses and holds the in-process and need not to release repeatedly and press the machine of holding, and not only easy operation is favorable to the operation moreover.

In addition, this application realizes the auto-lock of holding the machine through setting up the retaining member, is favorable to preventing to rotate the damage of holding the machine or extranal packing that the lid aversion leads to in the transportation.

Drawings

The invention is described in further detail below with reference to the following figures and detailed description:

FIG. 1 is a schematic view of the external structure of the grip presser of the present invention;

FIG. 2 is a schematic view of the internal structure of the crimping machine of the present invention;

FIG. 3 is a schematic view of the construction of the rotating cover of the present invention;

FIG. 4 is a schematic view of the retaining cap, spout and retaining member of the present invention;

FIG. 5 is a schematic view of the structure of the holder and the absorbent member of the present invention;

FIG. 6 is a schematic structural view of a rotary cover, a stationary cover and a water storage member of the present invention;

FIG. 7 is an exploded view of the rotary cap, the stationary cap and the water storage member of the present invention;

FIG. 8 is a schematic view of the structure of the water storage member of the present invention;

fig. 9 is a schematic structural view of the fixing cover of the present invention.

The reference numbers illustrate:

1. a fixed cover; 11. a sliding groove; 12. a sliding guide rail; 13. a second through hole; 14. a second limiting hole; 2. rotating the cover; 21. a helical ramp; 22. a third through hole; 23. a first limit hole; 3. a water absorbing member; 4. a clamping member; 41. pressing the holding opening; 42. a first protrusion; 43. a second protrusion; 44. a strip-shaped chute; 45. a concave structure; 5. a base; 6. a support frame; 61. a first through opening; 7. a water storage member; 71. a third limiting hole; 72. a water outlet; 8. and a locking member.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.

In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

Example one

As shown in fig. 1 and 2, the crimping machine of the present embodiment can be used for compressing medical stents, heart valves, and the like. The pressing and holding machine comprises a fixed cover 1, a rotating cover 2, a water absorbing piece 3 and a plurality of clamping pieces 4; the rotating cover 2 is sleeved outside the fixed cover 1 and can rotate relative to the fixed cover 1; the plurality of clamping pieces 4 are arranged in the fixed cover 1 in the circumferential direction, the clamping pieces 4 can be movably arranged along the radial direction of the fixed cover 1, the tail ends of the plurality of clamping pieces 4 are surrounded to form a pressing and holding opening 41 for pressing and holding the piece to be pressed and held, the rotating cover 2 drives the clamping pieces 4 to move along the radial direction of the fixed cover 1 when rotating, so that the tail ends of the clamping pieces 4 are close to or far away from each other, and the pressing and holding opening 41 is reduced or enlarged; the water absorbing part 3 is arranged at the tail end of the clamping part 4, and when the tail end of the clamping part 4 is close to each other, the clamping part 4 extrudes the water absorbing part 3.

When the valve is pressed, the rotating cover 2 is rotated, the rotating cover 2 drives the clamping piece 4 to move along the radial direction of the fixed cover 1, so that the tail ends of the clamping piece 4 are close to each other, the pressing opening 41 is reduced to press and hold the valve, the water absorbing piece 3 is arranged at the tail end of the clamping piece 4, and when the tail ends of the clamping piece 4 are close to each other, the water absorbing piece 3 is extruded through the clamping piece 4, so that the physiological saline stored in the water absorbing piece 3 can be extruded out, and the pressed and held piece is always soaked in the physiological saline. The absorbent member 3 may be a member capable of storing physiological saline, such as absorbent cotton or sponge.

So far, as can be understood by those skilled in the art, the water absorbing member 3 and the position of the water absorbing member 3 in the present embodiment are actually the key points of the present embodiment. This scheme is through setting up the part of absorbing water 3 at 4 tail ends of holder, when pressing and holding the valve, it reduces to press and hold a mouth 41 internal diameter, holder 4 is toward pressing and holds a mouth 41 central removal, the clearance between holder 4 reduces this moment, holder 4 tail ends can be close to each other and absorb water 3 with the extrusion, extrude the inside normal saline of part of absorbing water 3, the messenger is pressed and is held the piece and soak in normal saline all the time, press and hold the in-process and need not to release repeatedly and press the machine of holding, and the operation is not only simple, and be favorable to.

The number of the water absorbing pieces 3 is one or more, preferably, the water absorbing pieces 3 and the clamping pieces 4 are arranged in a one-to-one correspondence manner, that is, one water absorbing piece 3 is arranged on each clamping piece 4, and the water storage capacity can be increased by increasing the number of the water absorbing pieces 3. The water absorbing member 3 can be fixedly connected with the holding member 4 by means of glue, a bandage, a suture, etc.

In this embodiment, in order to drive the clamping member 4 to move along the radial direction of the fixed cover 1 when the rotating cover 2 rotates, as shown in fig. 3 to 5, a spiral slideway 21 is arranged on the rotating cover 2, a sliding groove 11 is arranged on the fixed cover 1, and the sliding groove 11 extends along the radial direction of the fixed cover 1; the clamping piece 4 is provided with a first protrusion 42 and a second protrusion 43, the first protrusion 42 is slidably arranged in the sliding groove 11, and the second protrusion 43 is slidably connected with the spiral slideway 21; when the rotary cover 2 rotates, the second protrusion 43 slides in the spiral slideway 21 and drives the first protrusion 42 to slide in the sliding groove 11, so that the clamping piece 4 moves along the radial direction of the fixed cover 1.

The spiral slideway 21 on the rotating cover 2 is eccentrically slid, namely, the distance between the starting point of the spiral slideway 21 and the center of the rotating cover 2 is larger than the distance between the end point of the spiral slideway 21 and the center of the rotating cover 2. The clamping piece 4 is provided with a first protrusion 42 and a second protrusion 43, the first protrusion 42 is arranged on the sliding groove 11 of the fixed cover 1 in a sliding mode, the number of the sliding grooves 11 corresponds to that of the clamping piece 4, the second protrusion 43 is arranged in the spiral slideway 21 in a sliding mode, the first protrusion 42 is arranged in the sliding groove 11 in a sliding mode, the sliding groove 11 can play a limiting role, the clamping piece 4 can only move in the radial direction, and rotation in the circumferential direction cannot occur. When the rotating cover 2 rotates, the second protrusion 43 slides in the spiral slideway 21, and due to the eccentric arrangement of the spiral slideway 21 and the limiting action of the first protrusion 42 and the sliding groove 11, the rotating cover 2 can drive the second protrusion 43 to move along the radial direction when rotating, so that the rotating cover 2 can drive the clamping piece 4 to move along the radial direction of the fixed cover 1.

Preferably, a plurality of spiral slideways 21 are arranged on the rotating cover 2, the plurality of clamping pieces 4 are divided into a plurality of groups, and each group of clamping pieces 4 corresponds to one spiral slideway 21. For example, four spiral slideways 21 are arranged on the rotating cover 2, the number of the clamping pieces 4 is 12, the 12 clamping pieces 4 are divided into four groups, and 3 clamping pieces 4 in one group are all arranged in the same spiral slideway 21 in a sliding manner.

Preferably, as shown in fig. 4 and 5, the clamping member 4 is further provided with a strip-shaped sliding groove 44, the first protrusion 42 and the second protrusion 43 are all disposed at the head end of the clamping member 4 and located on the same surface of the clamping member 4, the fixed cover 1 is provided with a sliding guide rail 12 extending along the radial direction of the fixed cover 1, and the sliding guide rail 12 is slidably connected with the strip-shaped sliding groove 44. The strip-shaped sliding groove 44 on the clamping piece 4 is in sliding fit with the sliding guide rail 12 on the fixed cover 1, and when the clamping piece 4 moves along the radial direction of the fixed cover 1, the sliding guide rail 12 can enable the clamping piece 4 to have enough strength, so that the clamping piece 4 cannot be broken in the circumferential direction.

The radial movement of the clamping piece 4 along the fixed cover 1 driven by the rotation of the rotating cover 2 can also be realized by a mechanical structure in the prior art, such as a link mechanism, a screw mechanism, a cam mechanism, a gear rack and the like, so that the rotary motion of the rotating cover 2 is converted into the radial linear motion of the clamping piece 4 along the fixed cover 1.

As shown in fig. 5, the tail end of the clamping member 4 is a concave structure 45, the concave structures 45 of the plurality of clamping members 4 are sequentially arranged in the circumferential direction, the water absorbing member 3 is arranged at the concave structure 45 of the clamping member 4, and when the pressing and holding opening 41 is reduced, two adjacent concave structures 45 are gradually close to each other and tightly attached to each other to extrude the water absorbing member 3. In the pressing and holding process, as the pressing and holding opening 41 is reduced and the pressing and holding force is increased, the concave structures 45 at the tail ends of the plurality of clamping pieces 4 can be attached in sequence to press the water absorbing piece 3 arranged at the concave structures 45.

For making fixed lid 1 keep motionless, as shown in fig. 1, the press-holding machine further comprises a base 5 and a support frame 6, the support frame 6 is fixed on the base 5, the rotating lid 2 is rotatably arranged on the support frame 6, the fixed lid 1 is fixedly connected with the support frame 6, the support frame 6 is provided with a first through opening 61, the fixed lid 1 is provided with a second through opening 13, the rotating lid 2 is provided with a third through opening 22, and the press-holding opening 41 is respectively arranged corresponding to the first through opening 61, the second through opening 13 and the third through opening 22.

The base 5 is located the bottom of pressing the machine of holding for play the supporting role to whole pressing the machine of holding, be provided with the buckle on base 5 and the support frame 6 respectively, support frame 6 is fixed through buckle and 5 joints of base. The support frame 6 comprises two support frame split bodies which are mutually butted, a first through hole 61 is formed in the upper portion of each support frame split body, a buckle is arranged at the position of the first through hole 61, and the fixing cover 1 is fixedly clamped with the support frame 6 through the buckle so that the fixing cover 1 is fixed on the support frame 6.

The fixing cover 1 comprises two fixing cover split bodies which are mutually butted, the two fixing cover split bodies can be connected through a buckle and can also be fixedly connected through a fastener, illustratively, one of the fixing cover split bodies is provided with a screw column, the other fixing cover split body is provided with a screw hole, and the two fixing cover split bodies are fixedly connected through screws. The clamping piece 4 is arranged in an accommodating cavity formed by the butt joint of the two fixing cover split bodies.

The rotating cover 2 includes two rotating cover split bodies butted against each other, the rotating cover split bodies have a circular cover body and a handle connected to the cover body, and a third through hole 22 is provided in the center of the cover body for allowing the member to be press-gripped to pass therethrough. The two rotating covers 2 are fixedly connected through a buckle. The rotating cover 2 formed after the two rotating covers are in split butt joint can rotate relative to the supporting frame 6, so that the pressing operation of the piece to be pressed is realized.

Example two

In order to facilitate the injection of the physiological saline into the squeeze grip, as shown in fig. 6 to 9, the present embodiment further includes a water storage member 7 and a locking member 8 based on the first embodiment, the rotating cover 2 is provided with a first limiting hole 23, and the fixed cover 1 is provided with a second limiting hole 14 corresponding to the first limiting hole 23; the water storage part 7 is arranged in an accommodating cavity formed by the two fixing covers in a split and mutual butt joint mode, the water storage part 7 is sleeved outside the clamping part 4 and is fixedly connected with the fixing covers 1, the water storage part 7 is provided with a water storage tank, a third limiting hole 71 communicated with the water storage tank and a water outlet 72 communicated with the water storage tank, the third limiting hole 71 is communicated with the second limiting hole 14, and the water outlet 72 is arranged towards the water absorbing part 3; the locking member 8 is inserted in the first, second and third limiting holes 23, 14 and 71 in sequence, and is used for locking the rotating cover 2 and the fixed cover 1 and sealing the third limiting hole 71.

When the press-holding machine is not used, the locking piece 8 sequentially penetrates through the first limiting hole 23 on the rotating cover 2, the second limiting hole 14 on the fixed cover 1 and the third limiting hole 71 of the water storage piece 7 to seal the third limiting hole 71, meanwhile, the locking piece 8 can limit the relative rotation of the rotating cover 2 and the fixed cover 1, the self-locking of the press-holding machine is realized, and the rotating cover 2 is prevented from shifting and damaging an outer package in the transportation process.

When the pressing and holding is needed, the locking piece 8 is pulled out, a proper amount of normal saline is injected into the pressing and holding machine through the first limiting hole 23 on the rotating cover 2, and the normal saline flows into the third limiting hole 71 of the water storage piece 7 along the first limiting hole 23 on the rotating cover 2 and the second limiting hole 14 on the fixed cover 1. Water storage 7 is the loop configuration, be equipped with the aqua storage tank in the lateral wall of water storage 7, be equipped with the delivery port 72 with the aqua storage tank intercommunication on the inside wall of water storage 7, spacing hole 71 of third and aqua storage tank intercommunication, saline flows into the aqua storage tank from spacing hole 71 of third, then flow out from delivery port 72, delivery port 72 sets up towards water absorption 3, the saline that flows out from delivery port 72 can be absorbed by water absorption 3, so that water absorption 3 can store saline, so that press at the later stage and hold the in-process through the saline that stores in the water absorption 3 and come to soak and wait to press and hold the piece. The number of the water outlets 72 is multiple, and the multiple water outlets 72 are uniformly distributed along the circumferential direction of the water storage member 7.

The aperture of the third position-limiting hole 71 is smaller than the aperture of the second position-limiting hole 14, and the third position-limiting hole 71 is clamped in the second position-limiting hole 14. When the water storage device is installed, the third limit hole 71 of the water storage device 7 is clamped into the second limit hole 14 of the fixed cover 1, so that the water storage device 7 can be firmly installed.

The installation method of the gripper of the embodiment comprises the following steps:

(1) firstly, connecting a plurality of clamping pieces 4 with the water absorbing piece 3 respectively;

(2) sequentially installing a plurality of clamping pieces 4 into the fixed cover 1, wherein the strip-shaped sliding grooves 44 of the clamping pieces 4 are clamped into the sliding guide rails 12 of the fixed cover 1, and the first protrusions 42 of the clamping pieces 4 are clamped into the sliding grooves 11 of the fixed cover 1;

(3) the third limiting holes 71 of the two water storage pieces 7 are clamped into the second limiting holes 14 of the fixed cover 1;

(4) the fixed cover 1 and the clamping piece 4 are integrally installed into the rotating cover 2, wherein the second bulge 43 of the clamping piece 4 is clamped into the spiral slideway 21 of the rotating cover 2;

(5) fixing the support frame 6 with the fixed cover 1 and the base 5;

(6) the rotating cover 2 is rotated, the inner diameter of the pressing and holding port 41 is adjusted to be the largest, the third limiting hole 71 of the water storage part 7, the second limiting hole 14 of the fixing cover 1 and the first limiting hole 23 of the rotating cover 2 are just aligned, the locking part 8 sequentially penetrates into the first limiting hole 23 of the rotating cover 2, the second limiting hole 14 of the fixing cover 1 and the third limiting hole 71 of the water storage part 7, the rotating cover 2 and the fixing cover 1 cannot rotate mutually at the moment, and the installation is completed.

The crimping method of the embodiment is as follows:

taking out the locking pieces inserted in the first limiting hole, the second limiting hole and the third limiting hole;

injecting normal saline into the water storage tank of the water storage piece through the first limiting hole, the second limiting hole and the third limiting hole;

placing the valve in the crimping opening;

rotating the rotating cover to move the tail ends of the clamping pieces to approach each other and reducing the pressing and holding opening to clamp the valve;

after the tail ends of the clamping pieces are close to each other, the clamping pieces extrude the water absorbing pieces arranged at the tail ends of the clamping pieces, so that the physiological saline stored in the water absorbing pieces is released and soaks the valve;

after the pressing and holding are finished, the rotating cover is rotated reversely, and the valve is taken out;

after the pressing and holding is completed, the locking piece is sequentially inserted into the first limiting hole, the second limiting hole and the third limiting hole.

Specifically, when the pressing and holding device is used, the locking piece 8 is taken out firstly, and sufficient physiological saline is injected into the pressing and holding device through the first limiting hole 23 on the rotating cover 2. Then, the member to be gripped is placed into the gripping opening 41, the rotating cover 2 is rotated, and the clamping member 4 is moved under the matching of the spiral slideway 21 in the rotating cover 2 and the second protrusion 43 of the clamping member 4. Due to the restriction of the sliding groove 11 of the stationary cover 1, the holder 4 is moved only in a specific direction in the radial direction of the stationary cover 1, thereby reducing the crimping opening 41. Since the interval between the holders 4 is narrowed, the absorbent member 3 between the holders 4 is pressed, the physiological saline stored in the absorbent member 3 is released, and the crimped valve is soaked in the physiological saline. After the holding is continued for a sufficient time, the rotating cover 2 is released and the valve is taken out.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (12)

1. A crimping machine, comprising:

a fixed cover;

the rotating cover is sleeved outside the fixed cover and can be rotatably arranged relative to the fixed cover;

the clamping pieces are arranged in the fixed cover in a circumferential direction and can move in the radial direction of the fixed cover, tail ends of the clamping pieces surround to form a press-holding opening for press-holding a to-be-pressed piece, and the rotating cover drives the clamping pieces to move in the radial direction of the fixed cover when rotating, so that the tail ends of the clamping pieces are close to or far away from each other, and the press-holding opening is reduced or enlarged;

the water absorbing piece is arranged at the tail end of the clamping piece, and when the tail end of the clamping piece is close to each other, the clamping piece extrudes the water absorbing piece.

2. The crimping machine as claimed in claim 1,

the water storage part and the locking part are also included;

a first limiting hole is formed in the rotating cover, and a second limiting hole corresponding to the first limiting hole is formed in the fixing cover;

the water storage part is sleeved outside the clamping part and fixedly connected with the fixing cover, the water storage part is provided with a water storage tank, a third limiting hole communicated with the water storage tank and a water outlet communicated with the water storage tank, the third limiting hole is communicated with the second limiting hole, and the water outlet faces the water absorbing part;

the locking piece is inserted in the first limiting hole, the second limiting hole and the third limiting hole in sequence and used for locking the rotating cover and the fixed cover and sealing the third limiting hole.

3. The crimping machine as claimed in claim 2, wherein the third position-limiting hole has a smaller diameter than the second position-limiting hole, and the third position-limiting hole is engaged with the second position-limiting hole.

4. The squeezing machine according to claim 2, wherein the water storage member is an annular structure, and a plurality of water outlets are uniformly distributed on the inner wall of the water storage member along the circumferential direction.

5. The crimping machine as claimed in claim 4, wherein the number of the water absorbing members is plural, and the plural water absorbing members are provided in one-to-one correspondence with the plural holding members.

6. The press-holding machine according to claim 5, wherein the tail ends of the clamping members are concave structures, the concave structures of the plurality of clamping members are sequentially arranged along the circumferential direction, the water absorbing member is arranged at the concave structures of the clamping members, and when the press-holding openings gradually decrease, two adjacent concave structures gradually approach and cling to each other to extrude the water absorbing member.

7. A crimping machine according to any one of claims 1 to 6,

a spiral slideway is arranged on the rotating cover;

the fixed cover is provided with a sliding groove, and the sliding groove extends along the radial direction of the fixed cover;

the clamping piece is provided with a first bulge and a second bulge, the first bulge is slidably arranged in the sliding groove, and the second bulge is slidably connected with the spiral slideway;

when the rotating cover rotates, the second protrusion slides in the spiral slideway and drives the first protrusion to slide in the sliding groove, so that the clamping piece moves along the radial direction of the fixed cover.

8. The crimping machine according to claim 7, wherein the clamping member further comprises a bar-shaped sliding groove, the first protrusion and the second protrusion are all disposed at a head end of the clamping member and located on a same plane of the clamping member, the fixing cover is provided with a sliding guide rail extending along a radial direction of the fixing cover, and the sliding guide rail is slidably connected with the bar-shaped sliding groove.

9. The squeezing machine according to claim 2, wherein the fixing cover comprises two fixing cover split bodies, the two fixing cover split bodies are butted with each other to form an accommodating cavity, the clamping member and the water storage member are respectively arranged in the accommodating cavity, and the clamping member is positioned on the inner side of the water storage member.

10. The squeezing machine according to claim 1, further comprising a base and a supporting frame, wherein the supporting frame is fixed on the base, the rotating cover is rotatably disposed on the supporting frame, the fixed cover is fixedly connected with the supporting frame, a first through hole is disposed on the supporting frame, a second through hole is disposed on the fixed cover, a third through hole is disposed on the rotating cover, and the squeezing holes are respectively disposed corresponding to the first through hole, the second through hole and the third through hole.

11. A crimping method of a crimping machine, comprising:

placing the valve in the crimping opening;

rotating the rotating cover to drive the tail ends of the clamping pieces to approach each other and reducing the pressing and holding opening to clamp the valve;

after the tail ends of the clamping pieces are close to each other, the clamping pieces extrude the water absorbing pieces arranged at the tail ends of the clamping pieces, so that the normal saline stored in the water absorbing pieces is released and soaks the valve;

after the squeezing is completed, the rotating cover is rotated reversely, and the valve is taken out.

12. The crimping method of a crimping machine as claimed in claim 11, further comprising:

taking out the lock catches inserted in the first limiting hole, the second limiting hole and the third limiting hole;

and injecting normal saline into the water storage tank of the water storage piece through the first limiting hole, the second limiting hole and the third limiting hole, and inserting the lock catch back after the pressing and holding is completed.

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