CN210582554U

CN210582554U - Blood vessel forceps

Info

Publication number: CN210582554U
Application number: CN201920968188.7U
Authority: CN
Inventors: 王陶
Original assignee: Beijing Jishuitan Hospital
Current assignee: Beijing Jishuitan Hospital
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-05-22
Anticipated expiration: 2029-06-25

Abstract

The utility model provides a vascular forceps, include: the piston cylinder, the clamping piece and the adjusting piece are arranged on the piston cylinder, and the clamping piece is positioned above the adjusting piece; the upper end of the piston cylinder is provided with a fixed clamping part, the clamping piece comprises a clamping piston and a movable clamping part which are connected with each other, the clamping piston is arranged in the piston cylinder in a sliding manner, and the clamping piece can move up and down to enable the movable clamping part to abut against the upper end of the fixed clamping part; the adjusting piece comprises an adjusting piston and a piston rod which are connected with each other, the adjusting piston is arranged in the piston cylinder in a sliding mode, and the clamping piston and the adjusting piston are arranged at intervals. The utility model provides a vessel forceps can prevent to add the holding power too big, damages the blood vessel.

Description

Blood vessel forceps

Technical Field

The utility model belongs to medical equipment, in particular to a pair of vascular forceps.

Background

The vascular clamp is mainly used for clamping blood vessels or bleeding points, and is also called as a hemostatic clamp. The major difference in structure of the vascular clamp is the alveolar bed, which is divided into straight, curved, right-angled, curved (such as renal pedicle clamps) and the like, as required by the surgical operation. The vascular forceps used for vascular surgery have the advantages that teeth of tooth sockets are thin and shallow, the elasticity is good, the squeezing effect on tissues and the damage to vascular walls and vascular intima are light, and the vascular forceps are called as non-invasive vascular forceps. Because the front end of the forceps is smooth, the forceps can be easily inserted into the fascia, and the vein is not easy to puncture, and the forceps can be used for separating anatomical tissues. It can also be used for pulling suture, pulling out suture needle, or replacing forceps, but is not suitable for clamping skin, viscera and fragile tissue. When used for hemostasis, the tip is perpendicular to the tissue to clamp the broken end of the bleeding blood vessel and to clamp the nearby tissue as little as possible. Hemostats come in a variety of shapes and lengths to suit the needs of different procedures and sites. Except two kinds of common straight and curved blood vessel forceps, the blood vessel forceps also comprise a tooth blood vessel forceps (full tooth space) and a mosquito-type straight and curved blood vessel forceps.

The vascular forceps are medical equipment commonly used in orthopedic surgery, but in the case of bone fracture or broken bone of a patient, broken bone fragments are easy to leave nearby blood vessels, and when the traditional hemostatic forceps are used, the blood vessels are easy to be damaged by the bone fragments due to overlarge clamping force.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a vessel forceps can prevent to add the holding power too big, damages the blood vessel.

The utility model provides a vascular forceps, include: the piston cylinder, the clamping piece and the adjusting piece are arranged on the piston cylinder, and the clamping piece is positioned above the adjusting piece;

the upper end of the piston cylinder is provided with a fixed clamping part,

the clamping piece comprises a clamping piston and a movable clamping part which are connected with each other, the clamping piston is arranged in the piston cylinder in a sliding mode, and the clamping piece can move up and down to enable the movable clamping part to abut against the upper end of the fixed clamping part;

the adjusting piece comprises an adjusting piston and a piston rod which are connected with each other, the adjusting piston is arranged in the piston cylinder in a sliding mode, and the clamping piston and the adjusting piston are arranged at intervals.

The utility model provides a vascular forceps's theory of operation as follows: the method comprises the following steps: piston cylinder, holder and regulating part, the holder passes through the centre gripping piston and is connected with the piston cylinder, and the regulating part passes through the regulating piston and is connected with the piston cylinder, and the centre gripping piston sets up with the regulating piston interval, and the centre forms airtight space, when the regulating piston reciprocates, promotes the action of centre gripping piston to the drive removes the clamping part and reciprocates, thereby cooperates with fixed clamping part, realizes the action of centre gripping and unclamping. Because the air layer is arranged between the clamping piston and the adjusting piston, the air can be compressed to change the volume, and when hard substances such as broken bones and the like are clamped, the clamping force can be prevented from being too large due to the expansion effect of the air, so that the blood vessel is prevented from being broken.

According to the utility model provides a pair of embodiment, the piston rod is equipped with the external screw thread, the inner wall of piston cylinder is equipped with the internal thread, the piston rod with piston cylinder threaded connection. With threaded connection's mode, can be through the number of turns of control piston rod pivoted, the control stroke to accurately control the centre gripping dynamics, and threaded connection can realize the auto-lock.

According to the utility model provides an embodiment, the piston rod is equipped with connecting portion, the external screw thread is located the surface of connecting portion, the piston rod passes through connecting portion with piston cylinder threaded connection. Is free of

According to the utility model provides an embodiment, the regulating part is still including setting up handheld portion on the piston rod. The adjusting piece is pushed or rotated by the hand-held part to act, so that the operation is convenient.

According to the utility model provides an embodiment, the piston cylinder inner wall is equipped with the guide way, fixed holder is equipped with the guide bar, the guide bar slides and sets up in the guide way. The length direction setting of piston cylinder is followed to guide bar and guide way, through guide bar and guide way adaptation, prevents that the holder from rotating, causes fixed clamping part and removes the clamping part and can't support to lean on realizing the clamping action.

According to the utility model provides an embodiment, the centre gripping piston with adjusting piston all is equipped with the sealing washer. Can strengthen sealed effect through the sealing washer, prevent gas leakage, influence the centre gripping effect.

Drawings

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 embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of a vascular clamp according to an embodiment;

FIG. 2 is a schematic cross-sectional view of a vascular clamp according to an exemplary embodiment;

FIG. 3 is a schematic structural diagram of a piston cylinder of the vascular clamp according to an embodiment;

FIG. 4 is a schematic structural diagram of a clamping member of a vascular clamp according to an embodiment

Fig. 5 is a schematic view of an adjusting part of the vascular clamp provided in one embodiment.

Description of the reference numerals

10-piston cylinder

11-fixed clamping part

20-clamping member

21-clamping piston

22-moving the clamping part

30-adjusting part

31-adjusting piston

32-piston rod

33-connecting part

34-hand-held part

40-sealing ring

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Example 1

Referring to fig. 1 to 5, the present embodiment provides a vascular clamp, including: the piston cylinder 10, the clamping piece 20 and the adjusting piece 30, wherein the clamping piece 20 is positioned above the adjusting piece 30;

the upper end of the piston cylinder 10 is provided with a fixed clamping part 11,

the clamping member 20 comprises a clamping piston 21 and a movable clamping part 22 which are connected with each other, the clamping piston 21 is arranged in the piston cylinder 10 in a sliding mode, and the clamping member 20 can move up and down to enable the movable clamping part 22 to abut against the upper end of the fixed clamping part 11.

The adjusting member 30 includes an adjusting piston 31 and a piston rod 32 connected to each other, the adjusting piston 31 is slidably disposed in the piston cylinder 10, and the clamping piston 21 is disposed at a distance from the adjusting piston 31.

The method comprises the following steps: piston cylinder 10, holder 20 and regulating part 30, holder 20 is connected with piston cylinder 10 through centre gripping piston 21, and regulating part 30 is connected with piston cylinder 10 through adjusting piston 31, and centre gripping piston 21 and adjusting piston 31 interval set up, and the middle confined space that forms, when adjusting piston 31 reciprocates, promotes centre gripping piston 21 action to the drive removes clamping part 22 and reciprocates, thereby cooperates with fixed clamping part 11, realizes the action of centre gripping and unclamping. Because the air layer is arranged between the clamping piston 21 and the adjusting piston 31, air can be compressed to change the volume, and when the clamping piston clamps hard substances such as broken bones, the clamping force can be prevented from being too large due to the expansion effect of the air, so that the blood vessel can be prevented from being broken.

Specifically, the piston rod 32 is provided with an external thread, the inner wall of the piston cylinder 10 is provided with an internal thread, and the piston rod 32 is in threaded connection with the piston cylinder 10. In a threaded connection mode, the stroke can be controlled by controlling the number of turns of the piston rod 32, so that the clamping force can be accurately controlled, and the threaded connection can realize self-locking.

More specifically, the piston rod 32 is provided with a connecting portion 33, an external thread is provided on an outer surface of the connecting portion 33, and the piston rod 32 is threadedly connected to the piston cylinder 10 through the connecting portion 33.

More specifically, the adjustment member 30 further includes a hand grip 34 disposed on the piston rod 32. The operation is convenient by pushing or rotating the adjusting piece 30 through the hand-held part 34.

More specifically, the inner wall of the piston cylinder 10 is provided with a guide groove, and the fixed clamp 20 is provided with a guide rod slidably disposed in the guide groove. The guide rod and the guide groove are arranged along the length direction of the piston cylinder 10, and the clamping piece 20 is prevented from rotating through the adaptation of the guide rod and the guide groove, so that the fixed clamping part 11 and the movable clamping part 22 cannot abut against each other to realize the clamping effect.

More specifically, the clamping piston 21 and the adjusting piston 31 are each provided with a sealing ring 40. Can strengthen sealed effect through sealing washer 40, prevent gas leakage, influence the centre gripping effect.

In the description of the present application, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. Vascular clamp, characterized in that includes: the piston cylinder (10), the clamping piece (20) and the adjusting piece (30), wherein the clamping piece (20) is positioned above the adjusting piece (30);

the upper end of the piston cylinder (10) is provided with a fixed clamping part (11),

the clamping piece (20) comprises a clamping piston (21) and a movable clamping part (22) which are connected with each other, the clamping piston (21) is arranged in the piston cylinder (10) in a sliding mode, the clamping piece (20) can move up and down, and the movable clamping part (22) is enabled to abut against the upper end of the fixed clamping part (11);

the adjusting piece (30) comprises an adjusting piston (31) and a piston rod (32) which are connected with each other, the adjusting piston (31) is arranged in the piston cylinder (10) in a sliding mode, and the clamping piston (21) and the adjusting piston (31) are arranged at intervals.

2. Vessel forceps according to claim 1, characterized in that the piston rod (32) is provided with an external thread and the inner wall of the piston cylinder (10) is provided with an internal thread, the piston rod (32) being in threaded connection with the piston cylinder (10).

3. Vascular forceps according to claim 2, characterized in that the piston rod (32) is provided with a connection (33), the outer thread being located on the outer surface of the connection (33), the piston rod (32) being screwed to the piston cylinder (10) via the connection (33).

4. Vascular clamp according to claim 3, characterized in that the adjustment member (30) further comprises a hand grip (34) arranged on the piston rod (32).

5. Vessel forceps according to claim 1, characterized in that the inner wall of the piston cylinder (10) is provided with a guide groove, and the fixed clamping part (20) is provided with a guide rod which is slidably arranged in the guide groove.

6. Vascular clamp according to claim 1, characterized in that the clamping piston (21) and the adjusting piston (31) are provided with sealing rings (40).