Loop ligature device for endoscopic cardia constriction operation biopsy duct retaining integrated treatment

Abstract

The loop ligature device comprises a loop ligature head, a trigger mechanism and a plurality of elastic rings, the loop ligature head is in a hollow tube shape, one end of the loop ligature head is provided with a connecting sleeve, the connecting sleeve is arranged on the head portion of an endoscope body in a sleeved mode, and the elastic rings are connected with the trigger mechanism. The elastic rings are sequentially arranged on the outer side wall of the end, away from the connecting sleeve, of the ligation head in a sleeving mode; the trigger mechanism comprises a trigger line, a traction line, an inner sleeve and an outer sleeve. The trigger mechanism has the advantages that the trigger mechanism is simple in structure and convenient to machine and manufacture, when the trigger mechanism is used, after the spring pin is pressed, the outer sleeve slides to enable the spring pin to enter the adjacent next through hole in the outer sleeve from the previous through hole in the outer sleeve, then an elastic ring can be released, use and operation are simple, and operation is convenient. The length of the traction line dragged by the outer sleeve every time can be accurately controlled, and then one elastic ring can be accurately controlled to be released through single-time operation, so that the surgical operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and in particular to a ligation device for integrated treatment of endoscopic cardia constriction with preserved biopsy channels. Background Art

[0002] As an endoscopic treatment method for GERD, cardia constriction is mainly suitable for patients with poor drug response and recurrent symptoms. The operation process is similar to that of esophageal varices ligation. The cylinder of the ligation device is installed on the front end of the gastroscope and enters the lower esophagus through the mouth. The mucosal layer and part of the muscle layer are fully attracted in turn on the lesser and greater curvatures proximal to the gastroesophageal junction. The loop is released to form folds in the mucosa and part of the muscle layer, and the root is fixed with a titanium clip. Scar formation after the operation leads to cardia constriction, thereby reducing reflux. Cardia constriction is increasingly used in clinical practice for its minimally invasive, safe and effective characteristics.

[0003] However, the existing ligation device release structure occupies the biopsy channel, resulting in cumbersome operation and prolonged operation time, which affects the efficiency and accuracy of cardiac stenosis operation and is not convenient for accurate metal clip closure. Therefore, a new type of ligation device is urgently needed to solve the above technical problems. Utility Model Content

[0004] To this end, the utility model provides a ligation device for integrated treatment of endoscopic cardia constriction with preserved biopsy channel, so as to solve the above-mentioned problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] According to the first aspect of the utility model, a ligation device for integrated treatment of endoscopic cardia coarctation with preservation of biopsy channels comprises a ligation head, a trigger mechanism and a plurality of elastic rings, wherein the ligation head is hollow and tubular, one end of the ligation head is provided with a connecting sleeve, the connecting sleeve is sleeved on the head of the mirror body, and the plurality of elastic rings are sequentially sleeved on the outer side wall of the ligation head away from the connecting sleeve at one end;

[0007] The trigger mechanism comprises a trigger line, a pulling line, an inner sleeve and an outer sleeve, the middle part of the trigger line is located inside the tying head, one end of the pulling line is connected to the middle part of the trigger line, both ends of the trigger line extend outside the tying head, and both ends of the trigger line are respectively attached to the outer side wall of the tying head; a plurality of stop beads are respectively arranged at both ends of the trigger line along the length direction thereof, a plurality of elastic rings are sequentially sleeved outside the trigger line, a stop bead is arranged between two adjacent elastic rings, and the stop bead is used to push the corresponding elastic ring to move when the trigger line is pulled;

[0008] The inner sleeve is fixedly mounted on the mirror body, and the outer sleeve is slidably mounted on the inner sleeve. The inner sleeve is provided with a spring pin, and the outer sleeve is provided with a plurality of through holes in sequence along its length direction. The spring pins and the through holes are arranged corresponding to each other, and the pull wire is arranged along the length direction of the mirror body, and the end of the pull wire facing away from the trigger wire is connected to the outer sleeve.

[0009] Furthermore, it also includes a binding sleeve, which binds the pulling wire to the outer side wall of the mirror body.

[0010] Furthermore, the restraint sleeve is an elastic sleeve.

[0011] Furthermore, the diameter of the top end of the ligature head is smaller than the diameter of the bottom end.

[0012] Furthermore, the number of the elastic rings is four.

[0013] Furthermore, the inner sleeve and the outer sleeve are both cylindrical.

[0014] Furthermore, a guide column is provided on the outer side wall of the inner sleeve, and the guide column is arranged along the length direction of the inner sleeve. A sliding groove is provided on the inner side wall of the outer sleeve, and the guide column is slidably arranged in the sliding groove.

[0015] Furthermore, three guide posts are provided on the outer side wall of the inner sleeve, and three guide grooves are provided on the inner side wall of the outer sleeve, and the guide posts and the guide grooves are arranged in a one-to-one correspondence.

[0016] The utility model has the following advantages: the trigger mechanism has a simple structure and is easy to manufacture. When in use, after the spring pin is pressed, the spring pin is allowed to enter the next adjacent through hole on the outer sleeve from the upper through hole on the outer sleeve by sliding the outer sleeve, thereby releasing an elastic ring. The utility model is simple to operate and can accurately control the length of the pulling line dragged by the outer sleeve each time, so that a single operation can accurately control the release of an elastic ring, which is more convenient for surgical operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0019] Figure 1 The following is an overall structural schematic diagram of a ligator for endoscopic cardia constriction with the retention of a biopsy channel for integrated treatment provided by some embodiments of the present utility model.

[0020] In the figure: 1, the endoscope body; 2, the ligating head; 3, the tightening rings; 4, the trigger wire; 5, the restraint sleeve; 6, the inner sleeve; 7, the outer sleeve; 8, the spring pin; 9, the through hole; 10, the pulling wire; 11, the retaining beads; 12, the connecting sleeve. Specific embodiments

[0021] The following specific embodiments illustrate the implementation manners of the present utility model. Those familiar with this technology can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1

[0023] As Figure 1 shown, a ligator for endoscopic cardia constriction with the retention of a biopsy channel for integrated treatment in the first aspect embodiment of the present utility model includes a ligating head 2, a trigger mechanism, and a plurality of tightening rings 3. The ligating head 2 is a hollow tube. One end of the ligating head 2 is provided with a connecting sleeve 12, and the connecting sleeve 12 is sleeved on the head of the endoscope body 1. The plurality of tightening rings 3 are sequentially sleeved on the outer side wall of the end of the ligating head 2 away from the connecting sleeve 12;

[0024] The trigger mechanism includes a trigger wire 4, a pulling wire 10, an inner sleeve 6, and an outer sleeve 7. The middle part of the trigger wire 4 is located inside the ligating head 2. One end of the pulling wire 10 is connected to the middle part of the trigger wire 4. Both ends of the trigger wire 4 extend outside the ligating head 2, and both ends of the trigger wire 4 are respectively attached to the outer side wall of the ligating head 2. A plurality of retaining beads 11 are respectively provided at both ends of the trigger wire 4 along its length direction. The plurality of retaining beads 11 are sequentially strung and fixed on the trigger wire 4. The plurality of tightening rings 3 are sequentially sleeved outside the trigger wire 4. A retaining bead 11 is provided between adjacent two tightening rings 3. The retaining bead 11 is used to push the corresponding tightening ring 3 to move when the trigger wire 4 is pulled, so that the tightening ring 3 falls off from the ligating head 2;

[0025] The inner sleeve 6 is fixedly mounted on the mirror body 1, and the outer sleeve 7 is slidably mounted on the inner sleeve 6. A spring pin 8 is provided on the inner sleeve 6. A plurality of through holes 9 are sequentially provided on the outer sleeve 7 along its length direction. The distance between two adjacent through holes corresponds to the length of the pull wire 10 required to pull to release an elastic ring 3. The spring pin 8 and the through hole 9 are arranged corresponding to each other. The spring pin 8 can extend from the through hole 9. The pull wire 10 is arranged along the length direction of the mirror body 1, and the end of the pull wire 10 facing away from the trigger wire 4 is connected to the outer sleeve 7.

[0026] In this embodiment, it should be noted that the diameter of the top end of the tying head 2 is smaller than the diameter of the bottom end, so that the elastic ring 3 is easier to fall off from the tying head.

[0027] The whole ligation device is used as follows. When in use, the ligation head 2 is delivered to the surgical site using an endoscope, and the negative pressure provided by the endoscope is used to fully attract the tissue into the ligation head 2. Then, the spring pin 8 is pressed down, and the outer sleeve 7 is pulled along the length direction of the inner sleeve 6, so that the spring pin 8 moves to the next through hole 9. Then, the trigger line 4 can be pulled by the pulling line 10 to release an elastic ring 3, which is then ligated on the tissue. Finally, the negative pressure suction is stopped, and the tissue in the ligation head 2 is released to complete the ligation operation.

[0028] The technical effect achieved by this embodiment is as follows: the trigger mechanism has a simple structure and is easy to manufacture. When in use, after pressing the spring pin 8, the spring pin 8 is allowed to enter the next adjacent through hole 9 on the outer sleeve 7 from the previous through hole 9 on the outer sleeve 7 by sliding the outer sleeve 7, thereby releasing an elastic ring 3. The operation is simple to use, and the length of the pulling line 10 dragged by the outer sleeve 7 each time can be accurately controlled, so that a single operation can accurately control the release of an elastic ring 3, which is more convenient for surgical operation.

[0029] Example 2

[0030] like Figure 1 As shown, this embodiment provides another ligation device for integrated treatment of endoscopic cardia stenosis with preserved biopsy channel, and its structure includes all the contents of embodiment 1, and only the different parts are described below.

[0031] In this embodiment, a binding sleeve 5 is further included, and the binding sleeve 5 binds the pulling wire 10 to the outer side wall of the mirror body 1 .

[0032] In the present embodiment, it should be noted that the restraint sleeve 5 is an elastic sleeve. Specifically, the restraint sleeve 5 adopts a grid-shaped elastic sleeve. During use, the restraint sleeve 5 allows the pull wire 10 to fit on the outer wall of the lens body 1, so that the pull wire 10 can bend accordingly with the bending of the lens body, but does not affect the pulling of the pull wire 10 by the outer sleeve 7.

[0033] The technical effect achieved by this embodiment is that by providing the restraint sleeve 5, the pulling wire 10 can deform correspondingly with the deformation of the endoscope body 1, ensuring that the pulling wire 10 is always in a taut state, thereby ensuring the smooth and precise control of the release of the tightening loop 3.

[0034] Embodiment 3

[0035] As Figure 1 shown, another ligator for integrated treatment of endoscopic cardia constriction with biopsy channel preservation provided in this embodiment has a structure including all the contents of Embodiment 2, and only the different parts will be described below.

[0036] In this embodiment, the number of tightening loops 3 is four, and the four tightening loops 3 are arranged from bottom to top in sequence along the height direction of the ligating head 2.

[0037] In this embodiment, it should be noted that the tightening loop 3 can be made of a rubber band.

[0038] The technical effect achieved by this embodiment is that the number of tightening loops 3 is four, and four ligation operations can be performed. Multiple ligations can be achieved during a single operation, avoiding repeated intubation, thereby greatly reducing the pain of the patient.

[0039] Embodiment 4

[0040] As Figure 1 shown, another ligator for integrated treatment of endoscopic cardia constriction with biopsy channel preservation provided in this embodiment has a structure including all the contents of Embodiment 3, and only the different parts will be described below.

[0041] In this embodiment, both the inner sleeve 6 and the outer sleeve 7 are cylindrical. Guide columns are provided on the outer side wall of the inner sleeve 6, and the guide columns are arranged along the length direction of the inner sleeve 6. A chute is provided on the inner side wall of the outer sleeve 7, and the guide columns are slidably arranged in the chute.

[0042] In this embodiment, it should be noted that three guide columns are provided on the outer side wall of the inner sleeve 6, and three guide grooves are provided on the inner side wall of the outer sleeve 7. The guide columns and the guide grooves are arranged in one-to-one correspondence.

[0043] The technical effect achieved by this embodiment is that by providing the guide columns and the chute, the sliding direction of the outer sleeve 7 can be limited, so that the spring pin 8 and the through hole 9 can be accurately aligned during the operation, ensuring the smooth progress of the ligation operation.

[0044] Although the present utility model has been described in detail above with general descriptions and specific embodiments, on the basis of the present utility model, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present utility model all fall within the scope of protection required by the present utility model.

[0045] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in technical content, should also be regarded as the scope of implementation of the present utility model.

Claims

1. An endoscopic cardia constriction treatment ligator that retains a biopsy channel and integrates treatment, characterized in that, It includes a ligation head (2), a triggering mechanism, and multiple elastic rings (3). The ligation head (2) is a hollow tube. One end of the ligation head (2) is provided with a connecting sleeve (12), and the connecting sleeve (12) is sleeved on the head of the endoscope body (1). Multiple elastic rings (3) are sequentially sleeved on the outer side wall of the end of the ligation head (2) away from the connecting sleeve (12). The triggering mechanism includes a triggering wire (4), a pulling wire (10), an inner sleeve (6), and an outer sleeve (7). The middle part of the triggering wire (4) is located inside the ligation head (2). One end of the pulling wire (10) is connected to the middle part of the triggering wire (4). Both ends of the triggering wire (4) extend outside the ligation head (2), and both ends of the triggering wire (4) are respectively attached to the outer side wall of the ligation head (2). Multiple retaining beads (11) are respectively arranged at both ends of the triggering wire (4) along its length direction. Multiple elastic rings (3) are sequentially sleeved outside the triggering wire (4). One retaining bead (11) is arranged between adjacent two elastic rings (3). The retaining bead (11) is used to push the corresponding elastic ring (3) to move when the triggering wire (4) is pulled. The inner sleeve (6) is fixedly sleeved on the endoscope body (1). The outer sleeve (7) is slidably sleeved on the inner sleeve (6). A spring pin (8) is arranged on the inner sleeve (6). Multiple through holes (9) are sequentially arranged on the outer sleeve (7) along its length direction. The spring pin (8) and the through holes (9) are arranged in correspondence with each other. The pulling wire (10) is arranged along the length direction of the endoscope body (1). One end of the pulling wire (10) away from the triggering wire (4) is connected to the outer sleeve (7).

2. The ligator for the integrated treatment of endoscopic cardia constriction with a biopsy channel reserved according to claim 1, characterized in that, It further includes a binding sleeve (5), and the binding sleeve (5) binds the pulling wire (10) on the outer side wall of the endoscope body (1).

3. The ligator for integrated treatment of endoscopic cardia constriction with biopsy channel reservation according to claim 2, characterized in that, The binding sleeve (5) is an elastic sleeve.

4. A ligator for the integrated treatment of endoscopic cardia constriction with biopsy channel retention, according to claim 3, characterized in that, The diameter of the top end of the ligation head (2) is smaller than that of the bottom end.

5. The ligator for integrated treatment of endoscopic cardia constriction with biopsy channel reserved according to claim 4, characterized in that, The number of the elastic rings (3) is four.

6. The ligator for integrated treatment of endoscopic cardia constriction with biopsy channel reserved according to claim 5, characterized in that, Both the inner sleeve (6) and the outer sleeve (7) are cylindrical.

7. A ligator for the integrated treatment of endoscopic cardia stenosis with retention of a biopsy channel, according to claim 6, characterized in that, Guide posts are arranged on the outer side wall of the inner sleeve (6). The guide posts are arranged along the length direction of the inner sleeve (6). A chute is arranged on the inner side wall of the outer sleeve (7). The guide posts are slidably arranged in the chute.

8. A ligator for integrated treatment of endoscopic cardia constriction with biopsy channel reservation according to claim 7, characterized in that, Three guide posts are arranged on the outer side wall of the inner sleeve (6). Three guide grooves are arranged on the inner side wall of the outer sleeve (7). The guide posts and the guide grooves are arranged in one-to-one correspondence.

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