CN213498659U - A dismantle pincers for heparin cap - Google Patents

Abstract

The utility model relates to a dismantlement pincers for heparin cap belongs to medical instrument technical field and includes first clamping part, second clamping part and elastomeric element, first clamping part is C shape structure, the second clamping part is the arc structure, the rotatable setting in first clamping part of second clamping part, the medial surface of first clamping part is constructed a plurality of and the gripping portion adaptation of heparin cap and is used for the tooth of card income gripping portion, and the lateral surface of first clamping part is constructed the torsion portion that is used for applying torsion, elastomeric element sets up between second clamping part and first clamping part, elastomeric element is used for providing elasticity for the closure of first clamping part and second clamping part; this dismantlement pincers, compact structure, reasonable in design, the installation and the dismantlement of realization heparin cap that can be convenient, laborsaving not only can not damage the heparin cap, but also have small in size, portable, characteristics such as with low costs, can effectively solve the not enough that prior art exists.

Description

A dismantle pincers for heparin cap

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to dismantlement pincers for heparin cap.

Background

The heparin cap is a commonly used medical instrument, belongs to standard locking joint, sets up the tip that can set up in various pipes usually, reaches the purpose of closed pipe, for example, the heparin cap is usually supporting with the artery and vein needle of staying, can puncture many times, repeatedly for the infusion, inject the medicine usefulness, can effectively prolong the life of vein needle of staying, reduces patient's medical expense and improves nurse's work efficiency.

The existing heparin cap generally comprises a cap body which is constructed with an internal channel, as shown in fig. 1 or fig. 2, one end of the cap body is constructed with a connector which is used for connecting an indwelling connector (such as an indwelling connector which is arranged on an arteriovenous indwelling needle and is generally constructed with an external thread), and the connector is constructed with an internal thread so as to realize detachable connection with the indwelling connector through the internal thread; the other end of the cap body is provided with sealing rubber which is used for closing one end of the internal channel; as shown in fig. 1 or fig. 2, in order to facilitate the installation and removal of the heparin cap, the cap body is further configured with a holding portion which is convenient to hold and is beneficial to increase the roughness, and the holding portion is generally a groove or a protrusion which is uniformly distributed along the circumferential direction of the cap body, so that a circle of toothed lines can be formed along the circumferential direction of the cap body.

In the actual use process, in order to prevent the problem of liquid leakage at the connector of the heparin cap, the connector of the heparin cap is usually connected with the indwelling connector more tightly, the volume of the heparin cap is usually smaller, and the heparin cap is not convenient for medical personnel to exert force, so that the dismounting and replacing processes of the heparin cap are very laborious, and even the situation that the heparin cap cannot be dismounted is caused, in order to solve the problem, the heparin cap is usually dismounted by adopting medical clamping and twisting type forceps in the prior art, the medical clamping and twisting type forceps are medical tools manufactured by utilizing the lever principle, when in use, the holding part of the heparin cap needs to be clamped, clamping force is applied to the holding part by the medical clamping and twisting type forceps, and then the medical clamping and twisting type forceps are rotated, so that the purpose of driving the heparin cap to rotate is achieved, but in the actual use process, the problems that the holding part is not easy to clamp and slip are not easy to occur by the, the problem that the clamping force is inconvenient to control and the heparin cap is very easy to clamp and retain the joint exists, the technical scheme that the heparin cap can be conveniently and efficiently disassembled is not disclosed in the prior art, the problem that the disassembling and screwing processes of the existing heparin cap are still laborious and inconvenient is caused, and urgent needs to be solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to improve the not enough that exists among the prior art, provide a compact structure, reasonable in design's dismantlement pincers, can be convenient, laborsaving realization heparin cap's installation and dismantlement, not only can not damage the heparin cap, but also have small in size, portable, characteristics such as with low costs.

The utility model adopts the technical proposal that:

the invention provides a pair of heparin cap dismounting forceps, which aims to solve the problems that the existing heparin cap dismounting is hard and the heparin cap is easy to damage by adopting medical clamping and twisting type forceps, and comprises a first clamping part, a second clamping part and an elastic component, wherein the first clamping part is of a C-shaped structure, the second clamping part is of an arc-shaped structure, the second clamping part is rotatably arranged on the first clamping part,

the inner side surface of the first clamping part is provided with a plurality of teeth which are matched with the holding part of the heparin cap and are used for being clamped into the holding part, the outer side surface of the first clamping part is provided with a twisting part for applying torsion,

the elastic component is arranged between the second clamping part and the first clamping part and used for providing elastic force for the closing of the first clamping part and the second clamping part. In the scheme, the elastic component is arranged between the first clamping part and the second clamping part, the first clamping part and the second clamping part are driven to be closed by utilizing the elasticity of the elastic component, so that the holding part of the heparin cap can be clamped by utilizing the elasticity of the elastic component, and the volume of the holding part and the parameters of the elastic component are known, so that the clamping force after the heparin cap is clamped by utilizing the detachable forceps can be preset, the clamping force is controllable, and the problems that the clamping force is uncontrollable, the heparin cap is easily crushed and the joint is left when the heparin cap is detached by adopting the medical clamping and twisting forceps can be effectively solved; on one hand, the first clamping part is constructed into a C-shaped structure, and the second clamping part is constructed into an arc-shaped structure, so that the first clamping part can be matched with the holding part constructed along the circumferential direction of the heparin cap, the problem of matching different sizes and types of heparin caps can be solved, the holding parts of the heparin caps with various sizes and types can be stably clamped between the first clamping part and the second clamping part, the universality is improved, on the other hand, the second clamping part mainly plays a role in restriction, so that the teeth of the first clamping part can be smoothly clamped into the holding part of the heparin cap, when the heparin cap is used, the holding part can be easily driven to synchronously rotate by rotating the first clamping part, the first clamping part can rotate through the torsion part, the torsion part is positioned at a position far away from the rotation center, and therefore, the first clamping part can be easily rotated by medical personnel in a labor-saving manner, thereby effectively solving the problem that the existing heparin cap is labor-consuming in the dismounting process; compared with the mode that adopts medical clamp to turn round type pliers and dismantle the heparin cap among the prior art, this dismantlement pincers are all different with the cooperation mode of heparin cap, dismantlement principle etc. and can solve the technical problem that medical clamp turned round type pliers can not be solved, can be convenient, laborsaving installation and the dismantlement of realization heparin cap, not only can not damage the heparin cap, but also have small in size, portable, characteristics such as with low costs.

In order to solve the force application problem when separating the second clamping part from the first clamping part in the second aspect of the invention, further, a lug is configured on the outer side of the second clamping part. Through setting up the lug for the lug can form the cooperation with the portion of twisting, so that when the in-service use, both can effectively separate second clamping part and first clamping part to inboard extrusion lug and the portion of twisting respectively, so that the centre gripping heparin cap, thereby can effectively solve when separating second clamping part and first clamping part, the problem of the power of not being convenient for is favorable to using more convenient, laborsaving.

In order to solve the problem of one-handed operation in the third aspect of the present invention, it is preferable that the first clamping portion has a circular arc shape, and a central angle of the first clamping portion is greater than or equal to 180 degrees. In the scheme, the first clamping part is constructed into the arc-shaped structure, and the central angle corresponding to the first clamping part is larger than or equal to 180 degrees, so that on one hand, the problem that teeth on the first clamping part are automatically clamped into the toothed grains of the heparin cap holding part can be solved, because after the heparin cap is clamped by the disassembly forceps, even if the disassembly forceps are started, the teeth on the first clamping part are clamped into the toothed grains of the heparin cap holding part, so that the teeth and the toothed grains rotate relative to each other, but in the rotating process, the heparin cap can move along the inner side surface of the first clamping part, the second clamping part is driven to further open, so that the elastic force of the elastic part is larger, when the elastic force reaches a certain value, the heparin cap can not move along the inner side surface of the first clamping part, so that the teeth on the first clamping part can automatically correspond to the toothed grains of the heparin cap holding part after the first clamping part rotates for a certain angle, the clamping device can be automatically clamped into the toothed lines of the heparin cap holding part, so that the heparin cap can be driven to synchronously rotate to achieve the purpose of disassembling the heparin cap, and on the other hand, the clamping device is more adaptive to the holding part constructed in the circumferential direction of the heparin cap, and the first clamping part and the holding part have larger contact area, so that the first clamping part can be used for driving the holding part to rotate more conveniently; through the combination of the two aspects, medical personnel can hold the disassembly forceps by one hand and hold the indwelling joint by the other hand, so that the disassembly forceps can be operated by one hand and the heparin cap can be conveniently disassembled.

In order to realize the rotatable coupling of second clamping part and first clamping part, further, still include the hinge post, the both ends of second clamping part and first clamping part are constructed respectively and are had the hinge hole, the hinge hole is located respectively the hinge post is overlapped. The second clamping part can be hinged to the first clamping part through the matching of the hinge column and the hinge hole, so that the second clamping part can rotate relative to the first clamping part.

Preferably, the elastic component is a torsion spring, the hinge post is sleeved with the torsion spring, and the torsion arms at two ends of the torsion spring are respectively constrained to the first clamping part and the second clamping part.

In order to solve the problem of preventing the first clamping part and the heparin cap from rotating relatively, preferably, the inner side surface of the second clamping part is provided with a plurality of teeth which are matched with the holding part of the heparin cap and are used for being clamped into the holding part,

or an elastic layer for increasing friction force is arranged on the inner side surface of the second clamping part. In one scheme, a plurality of teeth which are matched with the holding part of the heparin cap and are clamped into the holding part are formed on the inner side surface of the second clamping part, so that the teeth formed on the first clamping part can be matched with the teeth formed on the second clamping part, after the heparin cap is clamped, the teeth can be clamped into the holding part on two sides of the heparin cap respectively, and the constraint of two positions is realized, so that the holding part can be more favorably constrained, the holding part can synchronously rotate with the first clamping part, and the first clamping part and the heparin cap are effectively prevented from rotating relatively; in another scheme, through setting up the elastic layer at the medial surface of second clamping part, behind centre gripping heparin cap, under elastomeric element's elasticity effect, the elastic layer can take place to warp automatically and block in the dentate line of the portion of gripping to effectively in the frictional force that increases second clamping part and the portion of gripping, be favorable to preventing first clamping part and heparin cap relative rotation.

Preferably, the elastic layer is a rubber layer or a silica gel layer. So as to effectively increase the friction force with the holding part.

Furthermore, the inner side surface of the elastic layer is provided with grains for increasing friction force. Thereby can further increase frictional force, be more favorable to preventing first clamping part and heparin cap relative rotation.

Preferably, the first clamping part and the second clamping part are made of metal or plastic respectively. Is convenient for manufacturing and molding and is also convenient for later-period disinfection.

Preferably, the teeth configured on the first clamping portion are distributed along the direction of the center of the circle of the first clamping portion respectively.

In a fifth aspect of the present invention, to solve the problem that the teeth of the first clamping portion are more effectively engaged into the tooth-shaped lines of the holding portion, further, the teeth formed on the inner side surface of the first clamping portion are respectively disposed on the inner side surface along the same inclination angle, or the teeth formed on the inner side surface of the first clamping portion are unidirectional teeth. That is, in the scheme, the teeth constructed on the inner side surface of the first clamping part are not directed to the center of the first clamping part, so that each tooth is obliquely fixed on the inner side surface of the first clamping part, when the heparin cap is clamped by the first clamping part and the second clamping part, when the heparin cap is rotated according to the direction of unscrewing the heparin cap, the obliquely arranged teeth just correspond to the toothed grains of the holding part, so that the teeth can be more accurately and conveniently clamped into the toothed grains of the holding part, so that the holding part can be driven to rotate together, when the heparin cap is rotated according to the direction of screwing the heparin cap, each tooth can not be clamped into the toothed grains of the holding part, so that the dismounting clamp can be quickly and efficiently restored to the initial position, so as to perform the next period of rotation, thereby being beneficial to quickly and efficiently dismounting the heparin cap, and in the same way, when the heparin cap needs to be mounted, only the dismounting clamp needs to clamp the cap after being overturned by 180 degrees, at this moment, when rotating according to the direction of screwing up the heparin cap, the tooth that the slope set up just in time can correspond the dentate line of the portion of gripping for the tooth can be more accurate, convenient card go into the dentate line of the portion of gripping, thereby can drive the portion of gripping and rotate together, reach the purpose of screwing up the heparin cap fast, and when rotating according to the direction of unscrewing the heparin cap, each tooth can not go into in the dentate line of the portion of gripping, so circulate, can screw up the heparin cap fast, efficient, unusual convenience.

To facilitate the snap-in into the toothed texture of the gripping portion, it is preferred that the width of the teeth decreases in the direction of the height of the teeth. The top of tooth is little promptly, and the bottom is big, both is convenient for go into the dentate line of the portion of gripping with the top card of tooth, is favorable to transmitting great torsion again.

In order to solve the problems that the disassembly pliers are convenient to carry and labor-saving in use, in a sixth aspect of the invention, the torsion portion is at least one convex structure formed on the outer side surface of the first clamping portion. On the one hand, be favorable to this dismantlement pincers smaller and more exquisite, the structure is compacter, and on the other hand, when using, medical personnel only need pass through torsion is applyed to protruding column structure, can be convenient, the first clamping part of light promotion rotates to make the dismantlement process more laborsaving.

Preferably, the clamping device comprises a convex structure, the convex structure is arranged at one end of the first clamping part, and the convex structure is a rod.

Compared with the prior art, use the utility model provides a pair of a dismantle pincers for heparin cap, compact structure, reasonable in design, installation and the dismantlement that can make things convenient for, laborsaving realization heparin cap not only can not damage the heparin cap, but also have small in size, portable, characteristics such as with low costs.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a conventional heparin cap.

Fig. 2 is a schematic structural diagram of another conventional heparin cap.

Fig. 3 is a schematic structural view of the detaching forceps for a heparin cap provided in example 1.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a schematic structural view of the detaching forceps for a heparin cap provided in embodiment 1, after the first clamping portion and the second clamping portion are opened.

Fig. 6 is a schematic structural view of the detaching forceps for a heparin cap provided in example 2.

Fig. 7 is a schematic structural view of the detaching forceps for heparin caps provided in example 3.

Fig. 8 is a schematic structural view of an adjusting rod in the detaching forceps for a heparin cap provided in example 4.

Fig. 9 is a schematic structural view of an adjusting nut in the detaching forceps for a heparin cap provided in example 4.

Fig. 10 is a schematic structural view of a fixing assembly in the detaching forceps for a heparin cap provided in example 4.

Fig. 11 is one of partial structural schematic views of the detaching forceps for the heparin cap provided in example 4.

Fig. 12 is a partial top view of fig. 11.

Fig. 13 is a second partial structural view of the detaching forceps for heparin caps provided in example 4.

Description of the drawings

Cap body 101, grip portion 102, internal thread 103, sealing rubber 104, protrusion 105, groove 106

First clamping part 201, teeth 202, torsion part 203, internal cavity 204 and limiting hole 205

Second clamping part 301, lug 302 and elastic layer 303

Hinged column 401

Elastic member 501 and torque arm 502

The adjusting rod 601, the restriction hole 602, the adjusting nut 603, the threaded hole 604, the annular restriction groove 605, the fixing piece 606, the clamping groove 607 and the external thread 608.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-5, the present embodiment provides a pair of forceps for detaching a heparin cap, including a first clamping portion 201, a second clamping portion 301 and an elastic member 501, wherein the first clamping portion 201 is a C-shaped structure (i.e., an arc-shaped structure), the second clamping portion 301 is an arc-shaped structure, so as to be adapted to the structure of the holding portion 102 in the heparin cap, and the second clamping portion 301 is rotatably disposed on the first clamping portion 201;

as shown in fig. 3-5, the inner side surface of the first clamping portion 201 is configured with a plurality of teeth 202 adapted to the holding portion 102 of the heparin cap and used for being clipped into the holding portion 102, since in the case of the heparin cap, the gripping portion 102 is a groove uniformly distributed along the circumferential direction of the cap body 101, the present embodiment is able to prevent the user from being injured by the heparin cap by forming the teeth 202 on the inner side surface of the first clamping portion 201, so that the teeth 202 can be matched with the grooves and inserted into the grooves, so that the heparin cap is driven to synchronously rotate by the first clamping part 201, in another case, when the holding portion 102 is a protrusion evenly distributed along the circumferential direction of the cap body 101, a groove may be formed between two adjacent protrusions, and this embodiment is implemented by configuring the teeth 202 on the inner side surface of the first clamping portion 201, so that the teeth 202 can be inserted into the grooves between two adjacent protrusions, and the first clamping part 201 can also be used for driving the heparin cap to synchronously rotate;

as shown in fig. 3 to 5, in the present embodiment, a torsion portion 203 for applying a torsion force is formed on an outer side surface of the first clamping portion 201, and preferably, the torsion portion 203 may be at least one convex structure formed on the outer side surface of the first clamping portion 201. On one hand, the disassembly forceps is smaller in size and more compact in structure, and on the other hand, when in use, medical personnel only need to apply torque force through the convex structure to conveniently and easily push the first clamping part 201 to rotate, so that the disassembly process is more labor-saving; for example, as shown in fig. 3-5, in the present embodiment, a protruding structure is included, the protruding structure is disposed at one end of the first clamping portion 201, and the protruding structure is a rod, as shown in fig. 3-5, the rod is a square rod or a round rod, which is beneficial for the detachable pliers to have a more compact structure, a smaller volume, and a more portable structure; it is understood that there may be a plurality of protruding structures, the shape of the protruding structure is not limited to a rod, and the protruding structure may also be a bent structure, and the number, the installation position, the length, and the like of the torsion portions 203 may be determined according to actual requirements, which is not illustrated here.

As shown in fig. 3 to 5, the elastic member 501 is disposed between the second clamping portion 301 and the first clamping portion 201, and is configured to provide an elastic force for closing the first clamping portion 201 and the second clamping portion 301; preferably, the elastic member 501 may be a torsion spring, and the connection between the second clamping portion 301 and the first clamping portion 201 has various embodiments, and preferably, the elastic member further includes a hinge column 401, and hinge holes are respectively formed at two ends of the second clamping portion 301 and the first clamping portion 201, and are respectively sleeved on the hinge column 401; the second clamping part 301 can be hinged to the first clamping part 201 through the matching of the hinge column 401 and the hinge hole, so that the second clamping part 301 can rotate relative to the first clamping part 201; for example, as shown in fig. 3 to 5, two ends of the second clamping portion 301 and the first clamping portion 201 are respectively configured with a support lug, the hinge hole is respectively configured in the support lug, the torsion spring is sleeved on the hinge column 401, and the torsion arms at two ends of the torsion spring are respectively constrained to the first clamping portion 201 and the second clamping portion 301.

In this embodiment, the elastic member 501 is disposed between the first clamping portion 201 and the second clamping portion 301, the elastic force of the elastic member 501 is used to drive the first clamping portion 201 and the second clamping portion 301 to close, so that the gripping portion 102 of the heparin cap can be gripped by the elastic force of the elastic member 501, and the volume of the gripping portion 102 and the parameters of the elastic member 501 are known, so that the gripping force after the heparin cap is gripped by the forceps can be preset, and the gripping force can be controlled, thereby effectively solving the problems that the gripping force is uncontrollable and the heparin cap and the remaining joint are easily crushed when the heparin cap is detached by using the medical twisting forceps; on one hand, the first clamping part 201 is matched with the holding part 102 constructed along the circumferential direction of the heparin cap, so that the problem of matching different sizes and types of heparin caps can be solved, the holding parts 102 of the heparin caps with various sizes and types can be stably clamped between the first clamping part 201 and the second clamping part 301, and the universality is improved;

on the other hand, second clamping part 301 mainly plays the constraining action, make in the tooth 202 of first clamping part 201 can be smooth card goes into the portion of gripping 102 of heparin cap, so when using, can easily drive the portion of gripping 102 synchronous rotation through rotating first clamping part 201, and first clamping part 201 can rotate through torsion portion 203, torsion portion 203 can extend to the position department of keeping away from the rotation center, thereby be favorable to medical personnel more laborsaving, light first clamping part 201 of rotation, and then effectively solve the difficult problem of dismantlement process of current heparin cap.

As shown in fig. 3-5, in a further aspect, the outside of the second clamping portion 301 is configured with a lug 302; through the arrangement of the lug 302, the lug 302 can be matched with the torsion part 203, so that when the heparin cap is used in practice, the lug 302 and the torsion part 203 are respectively pressed inwards to effectively separate the second clamping part 301 from the first clamping part 201, so that the heparin cap can be clamped, the problem of inconvenience in force when the second clamping part 301 is separated from the first clamping part 201 can be effectively solved, and the heparin cap is more convenient and labor-saving to use; the lug 302 has various embodiments, for example, as shown in fig. 4 and 5, the lug 302 may preferably adopt a sheet structure, and the lug 302 and the second clamping portion 301 may be an integrally formed member.

Preferably, the first clamping portion 201 and the second clamping portion 301 may be made of metal or plastic respectively; is convenient for manufacturing and molding and is also convenient for later-period disinfection.

Preferably, in this embodiment, the first clamping portion 201 may preferably adopt an arc-shaped structure, and a central angle corresponding to the first clamping portion 201 is greater than or equal to 180 degrees, as shown in the figure, so as to form a gap on one side of the first clamping portion 201, and the second clamping portion 301 is disposed right on one side of the gap, and the length of the second clamping portion 301 is smaller than the width of the gap, so that the second clamping portion 301 can rotate into the first clamping portion 201 under the action of elastic force, as shown in fig. 3 and fig. 4, which is not only beneficial to reducing the volume, but also beneficial to clamping heparin caps of different sizes and types, and is particularly suitable for clamping heparin caps with smaller volume. In this embodiment, by configuring the first clamping portion 201 as an arc-shaped structure and making the central angle corresponding to the first clamping portion 201 be greater than or equal to 180 degrees, on one hand, the problem that the teeth 202 on the first clamping portion 201 are automatically clamped into the teeth 202-shaped lines of the heparin cap holding portion 102 can be solved, because after the heparin cap is clamped by the present forceps, even initially, the teeth 202 on the first clamping portion 201 are clamped into the teeth 202-shaped lines of the heparin cap holding portion 102, so that the two parts rotate relatively, but during the rotation process, the heparin cap will move along the inner side surface of the first clamping portion 201, drive the second clamping portion 301 to further open, so that the elastic force of the elastic component 501 is greater, when the elastic force reaches a certain value, the heparin cap will not move along the inner side surface of the first clamping portion 201, so that the teeth 202 on the first clamping portion can automatically correspond to the teeth 202-shaped lines of the heparin cap holding portion 102 after the first clamping portion 201 rotates a certain angle, thereby can block in the 202 lines of tooth of heparin cap gripping portion 102 automatically to can drive the synchronous rotation of heparin cap, reach the purpose of dismantling the heparin cap, on the other hand, with the gripping portion 102 of following the structure of heparin cap circumferencial direction more the adaptation, and make first clamping part 201 and gripping portion 102 have bigger area of contact, thereby more be favorable to utilizing first clamping part 201 drive gripping portion 102 to rotate.

In the embodiment, as shown in fig. 4 and 5, the teeth 202 configured on the first clamping portion 201 may be distributed along the direction of the center of the first clamping portion 201, as shown in the figure, the teeth 202 are bidirectional teeth 202, and the width of the teeth 202 gradually decreases along the direction of the height of the teeth 202. I.e., the teeth 202 have small tops and large bottoms, which facilitates the engagement of the tops of the teeth 202 into the teeth 202-like texture of the grip portion 102 and the transmission of large torque forces.

In this embodiment, the second clamping portion 301 is mainly used for cooperating with the first clamping portion 201 and clamping the heparin cap, and the first clamping portion 201 is mainly used to drive the heparin cap to rotate, so in a further aspect, the inner side surface of the second clamping portion 301 is configured with a plurality of teeth 202 adapted to the holding portion 102 of the heparin cap and used for being clamped into the holding portion 102, as shown in fig. 3-5, by configuring a plurality of teeth 202 adapted to the holding portion 102 of the heparin cap and used for being clamped into the holding portion 102 on the inner side surface of the second clamping portion 301, the teeth 202 configured to the first clamping portion 201 can cooperate with the teeth 202 configured to the second clamping portion 301, after clamping the heparin cap, the teeth can be clamped into the holding portion 102 on both sides of the heparin cap, so as to achieve two-position constraint, and further facilitate constraint of the holding portion 102, so that the holding portion 102 can rotate synchronously with the first clamping portion 201, thereby effectively preventing the first clamping part 201 and the heparin cap from rotating relatively; therefore, in the actual use process, after the holding part 102 of the heparin cap is clamped between the first clamping part 201 and the second clamping part 301, the second clamping part 301 prevents the holding part 102 from rotating relative to the second clamping part 301 through the teeth 202, and the first clamping part 201 drives the holding part 102 to rotate synchronously through the teeth 202, so that the device can rotate synchronously with the heparin cap, and the purpose of detaching and installing the heparin cap is achieved.

Example 2

The main difference between the present embodiment 2 and the above embodiment 1 is that in the detaching forceps for heparin cap provided in the present embodiment, the second clamping portion 301 has a different structure, in the present embodiment, the inner side surface of the second clamping portion 301 is provided with an elastic layer 303 for increasing friction force; as shown in fig. 6, by providing the elastic layer 303 on the inner side surface of the second clamping portion 301, after the heparin cap is clamped, under the elastic force of the elastic member 501, the elastic layer 303 can be automatically deformed and clamped into the tooth 202-shaped lines of the holding portion 102, so that the friction force between the second clamping portion 301 and the holding portion 102 is effectively increased, and the first clamping portion 201 and the heparin cap are prevented from rotating relatively; in the actual use process, after the holding part 102 of the heparin cap is clamped between the first clamping part 201 and the second clamping part 301, the second clamping part 301 prevents the holding part 102 from rotating relative to the second clamping part 301 through the friction force of the elastic layer 303, and the first clamping part 201 drives the holding part 102 to synchronously rotate through the teeth 202, so that the device can synchronously rotate with the heparin cap, and the purpose of detaching and installing the heparin cap is achieved.

Preferably, the elastic layer 303 may be a rubber layer or a silicone layer, so as to effectively increase the friction force with the grip portion 102.

In a further aspect, the inner side surface of the elastic layer 303 may also be configured with a texture for increasing friction, such as a tooth 202-shaped texture, so as to further increase friction, and further facilitate preventing the first clamping portion 201 and the heparin cap from rotating relatively.

Example 3

The main difference between this embodiment 3 and the above embodiment 1 is that, in the detaching forceps for a heparin cap provided in this embodiment, the teeth 202 configured on the inner side surface of the first clamping portion 201 are respectively disposed on the inner side surface along the same inclination angle, as shown in fig. 7, that is, the teeth 202 configured on the inner side surface of the first clamping portion 201 do not point to the center of the first clamping portion 201, or the teeth 202 configured on the inner side surface of the first clamping portion 201 are one-way teeth 202, so that each tooth 202 is obliquely fixed on the inner side surface of the first clamping portion 201, when the heparin cap is clamped by the first clamping portion 201 and the second clamping portion 301, when the heparin cap is rotated in the direction of unscrewing the heparin cap, the obliquely disposed teeth 202 just correspond to the lines of the teeth 202 of the holding portion 102, so that the teeth 202 can be more accurately and conveniently clamped into the lines of the teeth 202 of the holding portion 102, thereby driving the holding portion 102 to rotate together, when the pliers are rotated in the direction of screwing the heparin cap, all the teeth 202 cannot be clamped into the teeth 202-shaped lines of the holding part 102, so that the pliers can be quickly and efficiently restored to the initial position (similar to a ratchet mechanism) to rotate in the next period, and the operations are circulated, thereby being beneficial to quickly and efficiently disassembling the heparin cap;

similarly, when a heparin cap needs to be installed, the disassembly forceps are turned over 180 degrees and then clamped with the heparin cap, at the moment, when the disassembly forceps are rotated in the direction of screwing the heparin cap, the obliquely arranged teeth 202 can just correspond to the teeth 202-shaped lines of the holding part 102, so that the teeth 202 can be more accurately and conveniently clamped into the teeth 202-shaped lines of the holding part 102, the holding part 102 can be driven to rotate together, the aim of quickly screwing the heparin cap is fulfilled, and when the disassembly forceps are rotated in the direction of unscrewing the heparin cap, all the teeth 202 cannot be clamped into the teeth 202-shaped lines of the holding part 102, so that the heparin cap can be quickly and efficiently screwed, and the operation is very convenient; by adopting the design, the problem of quickly and efficiently disassembling/assembling the heparin cap can be effectively solved.

Example 4

In order to solve the problem of adjustable elasticity of the elastic member 501, a main difference between this embodiment 4 and the above embodiment 1 is that the detaching forceps for a heparin cap provided by this embodiment further includes an adjusting structure for adjusting the elastic force of the elastic member 501, in this embodiment, the elastic member 501 is a torsion spring, an inner cavity 204 is configured on one side of the torsion portion 203 facing the torsion spring, the inner cavity 502 is configured to accommodate a torsion arm 502 of the torsion spring, a limiting hole 205 is configured on one side of the inner cavity 204, the limiting hole 205 penetrates through the other side of the torsion portion 203, as shown in fig. 11 and 12, the adjusting structure includes an adjusting rod 601, an adjusting nut 603, and a fixing component for restraining the adjusting nut 603,

as shown in fig. 8 and 12, the adjusting rod 601 is configured with an external thread 608, and one end of the adjusting rod 601 is configured with a constraint hole 602, the torsion arm 502 at one end of the torsion spring is constrained to the lug 302, the torsion arm 502 at the other end passes through the constraint hole 602 and is configured with a bend, so that the torsion arm 502 at the end can be constrained to the adjusting rod 601, the diameter of the constraint hole 602 is larger than that of the torsion arm 502, and the constraint hole 602 can be preferentially a bar hole;

as shown in fig. 9 and 12, the adjusting nut 603 is configured with a threaded hole 604, the internal thread of the threaded hole 604 is matched with the external thread 608, and one side of the adjusting nut 603 is configured with an annular restraining groove 605, as shown in fig. 9;

as shown in fig. 10 and 13, the fixing assembly includes two fixing plates 606 with a zigzag structure, and the two fixing plates 606 are respectively configured with a semicircular clamping groove 607, when the two fixing plates 606 are spliced together, the two clamping grooves 607 can be enclosed into a circle and can be clamped in the annular restraining groove 605, and the fixing plates 606 can be fixed to the torsion portion 203 by welding, bonding, or bolting, so as to achieve the purpose of restraining the adjusting nut 603, such that the adjusting nut 603 can rotate relative to the torsion portion 203, but cannot move relative to the torsion portion 203,

as shown in fig. 11 and 12, the adjustment rod 601 passes through the limiting hole 205, the diameter of the limiting hole is larger than the outer diameter of the adjustment rod 601, and the adjustment rod 601 passes through the adjustment nut 603 and forms a screw transmission mechanism together with the adjustment nut 603.

In practical use, a user only needs to rotate the adjusting nut 603, and the adjusting nut 603 can be used to drive the adjusting rod 601 to move along the length direction of the limiting hole, so as to drive the torque arms 502 connected with the adjusting rod 601 to rotate a set angle, so that the included angle of the two torque arms 502, especially the included angle at the initial time, is changed, and the purpose of adjusting the elastic part 501 is achieved, so that the dismounting clamp can meet the requirements of various torque forces, has better universality, and can effectively solve the problems of insufficient clamping force and easy slip in the use process and is particularly suitable for being used after the heparin cap is dismounted for multiple times, the original clamping force does not pay attention to the condition of driving the heparin cap to rotate.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims (10)

1. A pair of forceps for detaching a heparin cap is characterized by comprising a first clamping part, a second clamping part and an elastic component, wherein the first clamping part is of a C-shaped structure, the second clamping part is of an arc-shaped structure, the second clamping part is rotatably arranged on the first clamping part,

the inner side surface of the first clamping part is provided with a plurality of teeth which are matched with the holding part of the heparin cap and are used for being clamped into the holding part, the outer side surface of the first clamping part is provided with a twisting part for applying torsion,

the elastic component is arranged between the second clamping part and the first clamping part and used for providing elastic force for the closing of the first clamping part and the second clamping part.

2. The forceps of claim 1, wherein the second clamping portion is configured with a lug on the outside.

3. The forceps of claim 1, wherein the first clamping portion has a circular arc shape, and the central angle of the first clamping portion is greater than or equal to 180 degrees.

4. The heparin cap dismounting forceps used for the claim 1, further comprising hinge columns, wherein hinge holes are respectively formed at two ends of the second clamping portion and the first clamping portion, and the hinge holes are respectively sleeved on the hinge columns.

5. The heparin cap dismounting forceps used for the claim 4, wherein the elastic component is a torsion spring, the torsion spring is sleeved on the hinged column, and the torsion arms at two ends of the torsion spring are respectively constrained on the first clamping portion and the second clamping portion.

6. The heparin cap dismounting forceps for the heparin cap according to any one of claims 1-5, wherein, the inner side surface of the second clamping part is configured with a plurality of teeth which are matched with the holding part of the heparin cap and are used for being clamped into the holding part,

or an elastic layer for increasing friction force is arranged on the inner side surface of the second clamping part.

7. The forceps of claim 6, wherein the resilient layer is a rubber layer or a silicone layer.

8. The forceps of claim 7, wherein the inner surface of the resilient layer is textured to increase friction.

9. The forceps of any one of claims 1-5, wherein the teeth on the inner surface of the first holding portion are disposed along the same angle of inclination, or the teeth on the inner surface of the first holding portion are unidirectional teeth.

10. The forceps of any of claims 1-5, wherein the torsion portion is at least one raised structure formed on an outer side of the first holding portion.

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