Catheter fixer for gastrointestinal surgery

Abstract

The invention belongs to the technical field of medical auxiliary equipment, and discloses a gastrointestinal surgery catheter fixator which comprises a base and a fixing assembly, the base is provided with two first through grooves and a second through groove, the base is connected with a driving clamping piece, a protrusion, a limiting block and two driven clamping pieces, the driving clamping piece is connected with an operating piece through a connecting piece, and the operating piece is connected with the fixing assembly. The two driven clamping pieces are connected with the base through springs, the driving clamping piece and the two driven clamping pieces are each provided with a clamping part, the driving clamping piece is connected with a wedge-shaped linkage piece, and the ends, away from the clamping parts, of the driven clamping pieces abut against the wedge-shaped face of the linkage piece in a sliding mode. The base and the body surface of a patient are fixed through the fixing assembly, the relative position relation of the driving clamping piece and the two driven clamping pieces is controlled through the operation piece and the spring, clamping of the catheter body is achieved, operation is easy, discomfort cannot be brought to the patient, the fixing effect on the catheter body is good, and the influence on the conductivity of the catheter body is small.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary equipment, in particular to a catheter fixer for gastrointestinal surgery. Background Art

[0002] Gastrointestinal surgery is one of the most important departments in clinical practice. It is a secondary department under the surgical system. Its diagnosis and treatment scope includes various digestive system diseases, and the diagnosis and treatment methods are mainly surgical treatment. Gastrointestinal surgery has been widely used due to its small incision, strong targeting, and easy postoperative recovery.

[0003] In gastrointestinal surgery, a catheter is inserted to drain the pus, blood, gas, and fluid accumulated in the abdominal cavity and other places to facilitate surgical operations and postoperative recovery. After intubation, the catheter needs to be fixed.

[0004] At present, when fixing the catheter, it is usually adhered to the skin with tape or directly sewn into the skin with sutures. Both of these fixing methods are not ideal in actual use. The former has a poor fixation effect on the catheter, and the catheter is easy to fall off, while increasing the bonding strength is easy to affect the conductivity of the catheter; the latter will cause unnecessary pain to the patient, and is not safe to use, uncomfortable, time-consuming and labor-intensive. Summary of the invention

[0005] The present invention is intended to provide a catheter fixer for gastrointestinal surgery, which uses a fixing assembly to fix the base to the patient's body surface, uses an operating member and a spring to control the relative position relationship between an active clamping member and two driven clamping members, and achieves clamping of the catheter body. The operation is simple, does not cause discomfort to the patient, and has a good fixing effect on the catheter body and little effect on the conductivity of the catheter body. The problems in the background technology are solved.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A catheter holder for gastrointestinal surgery comprises a base and a fixing assembly, wherein the fixing assembly is used to fix the base to the surface of a patient's body; the base is provided with a first through slot and a second through slot, the base is slidably penetrated with an active clamping member, the active clamping member is connected to an operating member through a connecting member, the connecting member is slidably connected to the second through slot, and the operating member is arranged on the outer side of the base; the base is connected with two driven clamping members through a rotating shaft, the two driven clamping members are respectively arranged on both sides of the active clamping member, the driven clamping member is penetrated through the first through slot, and the two driven clamping members are also connected to the base through a spring; the active clamping member and the two driven clamping members are both provided with a clamping part, and the three clamping parts are cooperatively arranged for clamping and fixing the catheter body; the active clamping member is also fixedly connected with a wedge-shaped linkage member, and the end of the linkage member close to the clamping part is a small end, and the ends of the two driven clamping members away from the clamping part are both slidably abutted against the wedge-shaped surface of the linkage member.

[0008] Furthermore, the two driven clamping members are arranged in a mirror-symmetrical manner with the vertical center plane of the active clamping member as a reference plane, and the three clamping parts are arranged in the form of an equilateral triangle.

[0009] Furthermore, a slide groove is provided on the wedge-shaped surface of the linkage member, and a guide wheel is connected to the side of the driven clamping member away from the clamping portion, and the guide wheel is slidably arranged on the inner side of the slide groove.

[0010] Furthermore, the clamping parts of the two driven clamping members are both hinged with rubber balls.

[0011] Furthermore, a protrusion and a limit block are fixedly connected to the inner side of the base, the active clamping member is provided with a groove matched with the protrusion, the protrusion is slidably arranged on the inner side of the groove, and the limit block is matched with the large end of the linkage member.

[0012] Furthermore, an external thread portion is provided on the upper portion of the connecting member, and the lowermost side of the external thread is provided on the inner side of the second through groove, and the operating member is provided with an internal thread portion, and the operating member is connected to the connecting member via threads.

[0013] Furthermore, the base is in a rectangular parallelepiped shape, the first through slot is arranged on the front side of the base, and the second through slot is arranged on the upper side of the base.

[0014] Furthermore, the fixing component is a patch, and the patch is fixedly bonded to the lower side of the base.

[0015] Furthermore, the fixing component is an elastic band, and two ends of the elastic band are respectively connected to the left and right sides of the base.

[0016] Furthermore, the fixing assembly is a buckle assembly, and two connecting buckles of the buckle assembly are respectively connected to the left and right sides of the base.

[0017] The principle and beneficial effects of the technical solution are:

[0018] 1. A catheter fixer for gastrointestinal surgery provided by the present invention uses a fixing component to fix the base to the patient's body surface, which will not cause unnecessary pain to the patient; the base is provided with a first through groove and a second through groove, and an active clamping member is slidably connected in the base, and the active clamping member is connected to the operating member through a connecting member, and the connecting member is slidably connected to the second through groove, so that when the active clamping member is slid by the operating member, the connecting member slides in the second through groove to guide and limit the movement of the active clamping member, ensuring the accuracy and uniformity of the active clamping member relative to the base during the movement; the base is connected to two driven clamping members through a rotating shaft and a spring, and the active clamping member is connected to a wedge-shaped linkage member, the active clamping member and the two driven clamping members are both provided with clamping parts, and the two driven clamping members are both slidably abutted against the wedge-shaped surface of the linkage member, and when the active clamping member is slid by the operating member, the two driven clamping members overcome the action of the spring under the action of the linkage member and move away from each other, so that the three clamping members The internal blank space between the holding parts is increased to facilitate the placement of the catheter body. After the force on the operating part is cancelled, the two driven clamping parts are brought together under the action of the spring, and the active clamping part returns to the initial position under the action of the linkage part, so that the internal blank space between the three clamping parts is reduced, and the clamping and fixing of the catheter body is realized; the clamping and fixing operation of the catheter body is simple, and the clamping and fixing effect is good; moreover, the fixer is placed into the catheter body from the side of the three clamping parts, and there is no need to penetrate from the end face of the catheter body, which can not only improve the convenience of operation, but also reduce the contact between the catheter end face and the fixer, reduce the probability of the catheter end face being contaminated, and ensure the sterility requirements of the catheter end face; in addition, the three clamping parts clamp and fix the catheter body from three directions, leaving one side as a blank surface, which can not only reduce the impact on the conductivity of the catheter body, but also facilitate medical staff to observe the conductivity of the clamping part, and further ensure the conductivity of the catheter body.

[0019] 2. The present invention provides a catheter holder for gastrointestinal surgery, wherein two driven clamping members for fixing and clamping the catheter body are arranged in mirror symmetry with the vertical center plane of the active clamping member as the reference plane, and the three clamping parts are arranged in a regular triangle, which has good wrapping performance for the catheter body, ensures that the clamping force is evenly distributed around the catheter body, reduces the deformation of the catheter body, and further reduces the influence on the conductivity of the catheter body; a slide groove is arranged on the wedge-shaped surface of the linkage member, the driven clamping member is connected to the guide wheel, and the guide wheel is slidably arranged on the inner side of the slide groove, so that the two (driven clamping member and linkage member) are connected to each other. When there is relative movement between the driven clamping member and the linkage member, the sliding friction between the driven clamping member and the linkage member is changed into rolling friction, thereby reducing the friction resistance, thereby reducing the labor intensity of operating the fixture, and further improving the convenience of operation; and the guide wheel slides in the slide groove to guide and limit the relative movement of the two, thereby ensuring the uniformity and stability during the movement, thereby ensuring the functionality of the entire fixture; the clamping parts of the two driven clamping members are both hinged with rubber balls, thereby increasing the friction coefficient between the clamping member and the catheter body, and further improving the clamping and fixing effect on the catheter body.

[0020] 3. A catheter holder for gastrointestinal surgery provided by the present invention has a protrusion and a limit block fixedly connected on the inner side of the base, a groove arranged in cooperation with the protrusion is arranged on the rotating clamping member, the protrusion moves in the groove, guides and limits the movement of the active clamping member, ensures the uniformity and stability during the movement, thereby ensuring the functionality of the entire holder, and the limit block limits the maximum movement position of the linkage member to avoid excessive operation; an external thread portion is arranged on the upper part of the connecting member, an operating member is provided with an internal thread portion, and the lowermost side of the external thread is arranged on the inner side of the second through groove, the operating member is connected to the connecting member through a thread, and the operating member is rotated to make it move along the axial direction of the connecting member under the action of the thread, so that the active clamping member can be fixed to the base, and the size of the internal blank space between the three clamping parts can be adjusted according to actual needs, and is not limited to the size of the blank space of the clamping member under the initial setting of the spring, so as to realize the clamping and fixing of catheter bodies of different sizes / models, and the clamping and fixing force of the catheter body can be adjusted according to actual needs, which can not only effectively expand the scope of application of the present holder, but also further improve the fixing effect of the catheter body.

[0021] 4. The present invention provides a catheter fixer for gastrointestinal surgery, wherein the base is in the shape of a rectangular parallelepiped, and the first through groove is arranged on the front side of the base, and the second through groove is arranged on the upper side of the base, so that the operating surface (operating member) is arranged on the side away from the patient's body surface, which is not only convenient for operation, but also can reduce the secondary medical injuries to the patient caused by misoperation or excessive operation; the fixing component can be a dressing, an elastic band or a buckle component, and different fixing components can be selected according to actual needs, which has good convenience of operation and good interchangeability of the entire fixer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of a catheter fixer for gastrointestinal surgery of the present invention;

[0023] Figure 2 for Figure 1 Sectional view of AA in the middle;

[0024] Figure 3 for Figure 1 Cross-sectional view of the middle BB;

[0025] Figure 4 This is a schematic structural diagram of a catheter fixer for gastrointestinal surgery in Example 1;

[0026] Figure 5 This is a schematic structural diagram of a catheter fixer for gastrointestinal surgery in Example 2;

[0027] Figure 6 This is a schematic structural diagram of a catheter fixer for gastrointestinal surgery in Example 3.

[0028] The names of the corresponding marks in the accompanying drawings are:

[0029] Base 1, first through slot 2, protrusion 3, limit block 4, active clamping member 5, clamping part 6, linkage member 7, driven clamping member 8, rubber ball 9, guide wheel 10, spring 11, second through slot 12, connecting member 13, operating member 14, catheter body 15, dressing 16a, elastic band 16b, buckle assembly 16c. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0031] Example 1

[0032] like Figures 1 to 4 As shown, a catheter holder for gastrointestinal surgery comprises a base 1 and a fixing assembly, the fixing assembly is used to fix the base 1 to the surface of the patient's body, in this embodiment, the fixing assembly is a patch 16a, and the patch 16a is fixedly bonded to the lower side of the base 1; the base 1 is in a rectangular shape, the front side of the base 1 is provided with two first through grooves 2, the upper side of the base 1 is provided with a second through groove 12, the inner side of the base 1 is slidably penetrated with an active clamping member 5, the active clamping member 5 is connected to an operating member 14 through a connecting member 13, the connecting member 13 is slidably connected to the second through groove 12, the operating member 14 is arranged on the outer side of the base 1, the upper part of the connecting member 13 is provided with an external threaded portion, and the lowermost side of the external thread is arranged on the inner side of the second through groove 12, the operating member 14 is provided with an internal threaded portion, and the operating member 14 is connected to the connecting member 13 through a thread;

[0033] The base 1 is connected to two driven clamping members 8 through a rotating shaft. The two driven clamping members 8 are arranged in a mirror-symmetrical manner with the vertical center plane of the active clamping member 5 as a reference plane. The two driven clamping members 8 are respectively penetrated through the two first through grooves 2, and the two driven clamping members 8 are also connected to the base 1 through springs 11; the active clamping member 5 and the two driven clamping members 8 are all provided with clamping parts 6, and the clamping parts 6 of the two driven clamping members 8 are all hinged with rubber balls 9, and the three clamping parts 6 are in a regular triangular shape. The active clamping member 5 is also fixedly connected with a wedge-shaped linkage member 7, and the end of the linkage member 7 close to the clamping member 6 is a small end, and the ends of the two driven clamping members 8 away from the clamping member 6 are both slidably abutted against the wedge-shaped surface of the linkage member 7, and the wedge-shaped surface of the linkage member 7 is provided with a slide groove, and the side of the driven clamping member 8 away from the clamping member 6 is connected with a guide wheel 10, and the guide wheel 10 is slidably arranged on the inner side of the slide groove;

[0034] The inner side of the base 1 is fixedly connected with a protrusion 3 and a limit block 4. The active clamping member 5 is provided with a groove matched with the protrusion 3. The protrusion 3 is slidably arranged inside the groove. The limit block 4 is matched with the large end of the linkage member 7.

[0035] Example 2

[0036] like Figure 5 As shown, in this embodiment, the fixing component is an elastic band 16b, and the two ends of the elastic band 16b are respectively connected to the left and right sides of the base 1; the rest of the structure, composition and connection method are the same as those in embodiment 1, and will not be repeated in this embodiment.

[0037] Example 3

[0038] like Figure 6 As shown, in this embodiment, the fixing component is a buckle component 16c, and the two connecting buckles of the buckle component 16c are respectively connected to the left and right sides of the base 1; the rest of the structure, composition and connection method are the same as those in Example 1, and will not be repeated in this embodiment.

[0039] The specific implementation process is as follows:

[0040] When using the fixator, first use the fixing component to fix the base 1 on the patient's body surface. If the fixing component is a patch 16a, then directly tear off the protective paper on its surface and stick it on the patient's body surface to complete the fixation; if the fixing component is an elastic band 16b or a buckle band component 16c, put it on the patient's body, and use the elastic band 16b or the buckle band component 16c to fix the base 1 to the patient; when the catheter body 15 needs to be fixed, slide the operating member 14 along the second through groove 12, so that the three clamping parts 6 are separated from each other, and the empty space between the three clamping parts 6 becomes larger, until the catheter body 15 can be completely placed inside the three clamping parts 6, and then cancel the sliding of the operating member 14, so that it is in the elastic band Under the action of the spring 11, it returns to the initial position and fixes and clamps the catheter body 15; if the size of the catheter body 15 is too small or there are special requirements, it is necessary to increase the fixing and clamping force of the catheter body 15, then the operating member 14 is continuously pushed along the second through groove 12, so that it continues to reduce the internal space between the three clamping parts 6 under the action of the spring 11, thereby increasing the fixing and clamping force of the catheter body 15. After the required requirements are met, the operating member 14 is rotated so that it moves downward along the axial direction of the connecting member 13 under the action of the thread until the lower end face of the operating member 14 abuts against the upper surface of the base 1, and the movement of the active clamping member 5 is limited under the action of friction, thereby completing the fixing and clamping of the catheter body 15.

[0041] Among them, the fixing component can be a patch 16a, an elastic band 16b or a buckle component 16c. Different fixing components can be selected according to actual needs, which is convenient to operate and has good interchangeability of the entire fixer; the base 1 is a rectangular parallelepiped, and the first through groove 2 is arranged on the front side of the base 1, and the second through groove 12 is arranged on the upper side of the base 1, so that the operating surface (operating part 14) is arranged on the side away from the patient's body surface, which is convenient for operation and can also reduce secondary medical injuries to patients caused by misoperation or excessive operation.

[0042] In the process of sliding the operating member 14 along the second through groove 12 of the base, the connecting member 13 slides in the second through groove 12, and the protrusion 3 connected to the inner side of the base 1 slides in the groove of the active clamping member 5, which guides and limits the movement of the operating member 14 and the active clamping member 5, ensuring the accuracy and uniformity of the movement process and the functionality of the entire fixture; and when the operating member 14 slides and drives the active clamping member 5 to slide, the two driven clamping members 8 overcome the action of the spring 11 under the action of the linkage member 7 and move away from each other, so that the internal blank space between the three clamping parts 6 is increased, so as to facilitate the placement of the catheter body 15. After the force on the operating member 14 is cancelled, the two driven clamping members 8 move away from each other. The driven clamping member 8 is brought together under the action of the spring 11, and the active clamping member 5 is returned to the initial position under the action of the linkage member 7, so that the internal blank space between the three clamping parts 6 is reduced, and the clamping and fixing of the catheter body 15 is realized; the clamping and fixing operation of the catheter body 15 is simple, and the clamping and fixing effect is good; moreover, the fixture is put into the catheter body 15 from the side of the three clamping parts 6, and there is no need to penetrate from the end face of the catheter body 15, which can not only improve the convenience of operation, but also reduce the contact between the catheter end face and the fixture, reduce the probability of the catheter end face being contaminated, and ensure the sterility requirements of the catheter end face; in addition, the three clamping parts 6 clamp the catheter body 15 from three directions The catheter body 15 is fixed and one side is left blank, which can reduce the impact on the conductivity of the catheter body 15 and facilitate medical staff to observe the conductivity of the clamping part 6, further ensuring the conductivity of the catheter body 15; further, the two driven clamping parts 8 are mirror-symmetrically arranged with the vertical center plane of the active clamping part 5 as the reference plane, and the three clamping parts 6 are arranged in an equilateral triangle, which has a good wrapping property for the catheter body 15, ensuring that the clamping force is evenly distributed around the catheter body 15, reducing the deformation of the catheter body 15, and further reducing the impact on the conductivity of the catheter body 15; a slide groove is arranged on the wedge-shaped surface of the linkage part 7, and the driven clamping part 8 is connected to the guide wheel 10, and the guide wheel 1 0 is slidingly arranged on the inner side of the slide groove, so that when the two (driven clamping member 8 and linkage member 7) are in relative motion, the sliding friction between the driven clamping member 8 and the linkage member 7 is changed into rolling friction, thereby reducing the friction resistance, thereby reducing the labor intensity of the operation process of the fixture, and further improving the convenience of operation; and the guide wheel 10 slides in the slide groove to guide and limit the relative motion of the two, thereby ensuring the uniformity and stability during the motion process, thereby ensuring the functionality of the entire fixture; the clamping parts 6 of the two driven clamping members 8 are both hinged with rubber balls 9, thereby increasing the friction coefficient between the clamping member and the catheter body 15, and further improving the fixing and clamping effect of the catheter body 15.

[0043] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A gastrointestinal surgical catheter holder, comprising a base and a fixing assembly, wherein the fixing assembly is used to fix the base to the surface of a patient's body; characterized in that: The base is provided with a first through slot and a second through slot, an active clamping member is slidably penetrated by the base, the active clamping member is connected to an operating member via a connecting member, the connecting member is slidably connected to the second through slot, and the operating member is arranged on the outer side of the base; the base is connected to two driven clamping members via a rotating shaft, the two driven clamping members are respectively arranged on both sides of the active clamping member, the driven clamping member is penetrated by the first through slot, and the two driven clamping members are also connected to the base via a spring; the active clamping member and the two driven clamping members are both provided with clamping parts, and the three clamping parts are cooperatively arranged for clamping and fixing the catheter body; the active clamping member is also fixedly connected with a wedge-shaped linkage member, and the end of the linkage member close to the clamping part is a small end, and the ends of the two driven clamping members away from the clamping part are both slidably abutted against the wedge-shaped surface of the linkage member.

2. A gastrointestinal surgical catheter fixer according to claim 1, characterized in that: The two driven clamping members are arranged in mirror symmetry with the vertical center plane of the active clamping member as a reference plane, and the three clamping parts are arranged in the form of an equilateral triangle.

3. A gastrointestinal surgical catheter fixer according to claim 2, characterized in that: The wedge-shaped surface of the linkage member is provided with a slide groove, and the side of the driven clamping member away from the clamping portion is connected with a guide wheel, and the guide wheel is slidably arranged on the inner side of the slide groove.

4. A gastrointestinal surgical catheter fixer according to claim 3, characterized in that: The clamping parts of the two driven clamping members are both hinged with rubber balls.

5. The gastrointestinal surgical catheter fixer according to claim 1, characterized in that: A protrusion and a limit block are fixedly connected to the inner side of the base, the active clamping member is provided with a groove matched with the protrusion, the protrusion is slidably arranged on the inner side of the groove, and the limit block is matched with the large end of the linkage member.

6. A gastrointestinal surgical catheter fixer according to claim 5, characterized in that: The upper part of the connecting member is provided with an external thread portion, and the lowermost side of the external thread is arranged on the inner side of the second through groove, the operating member is provided with an internal thread portion, and the operating member is connected to the connecting member through threads.

7. A gastrointestinal surgical catheter fixer according to claim 1, characterized in that: The base is in a rectangular parallelepiped shape, the first through slot is arranged on the front side of the base, and the second through slot is arranged on the upper side of the base.

8. A gastrointestinal surgical catheter fixer according to claim 7, characterized in that: The fixing component is a patch, and the patch is fixedly bonded to the lower side of the base.

9. A gastrointestinal surgical catheter fixer according to claim 7, characterized in that: The fixing component is an elastic band, and two ends of the elastic band are respectively connected to the left and right sides of the base.

10. The gastrointestinal surgical catheter fixer according to claim 7, characterized in that: The fixing assembly is a buckle assembly, and two connecting buckles of the buckle assembly are respectively connected to the left and right sides of the base.

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