Subcutaneous expansion forceps
By designing subcutaneous expansion forceps with folded line articulation segments, the problem of existing hemostasis forceps causing the incision expansion during subcutaneous expansion is solved, and the stability and shrinkability of maintaining the width near the articulation shaft in minimally invasive surgery is achieved.
Patent Information
- Application Number
- CN202421101829.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-20
AI Technical Summary
When existing hemostasis forceps are expanded subcutaneously, as the forceps are opened, the width near the hinge position increases, resulting in the incision being expanded and the minimally invasive surgical target cannot be achieved.
A subcutaneous expansion forceps are designed, and the articulated sections are in a fold-line shape. Through the groove design of the first and tail sections, when the forceps are opened, the width near the articulated shaft is reduced to avoid the incision being expanded.
During the subcutaneous expansion process, the width near the articulation shaft is kept unchanged or even reduced, thus achieving the goal of minimally invasive surgery and avoiding unnecessary expansion of the incision.
Smart Images
Figure CN222640524U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of minimally invasive surgical instruments, in particular to a subcutaneous expansion forceps. Background Art
[0002] At present, when performing laparoscopic minimally invasive surgery for congenital acute torticollis, a small incision is made first, and then the subcutaneous space is expanded to facilitate a certain field of view and operating space for surgery. However, there is no dedicated expansion device. Doctors often use hemostatic forceps to expand the subcutaneous space. When ordinary hemostatic forceps are used for subcutaneous expansion, as the hemostatic forceps are opened, the width near the hinge position increases, which will cause the incision to expand in the same way, thus failing to achieve the goal of minimally invasive surgery. Utility Model Content
[0003] The utility model aims to provide a subcutaneous expansion forceps, which, when opened, not only do not expand but shrink to a certain extent near the hinged position, thereby preventing the incision from being correspondingly enlarged.
[0004] To achieve the above purpose, the utility model provides the following solutions:
[0005] The utility model provides a subcutaneous expansion forceps, comprising two forceps bodies, wherein the forceps bodies comprise a forceps head section, a hinge section and a forceps handle section which are connected in sequence, and the hinge sections of the two forceps bodies are hingedly connected through a hinge shaft;
[0006] The articulated section includes a head section and a tail section, wherein the head section is located on a side of the articulated shaft close to the pliers head section, and the tail section is located on a side of the articulated shaft close to the pliers handle;
[0007] The side of the pliers body where the pliers teeth are arranged is a first side, and the side opposite to the first side is a second side;
[0008] The second side of the first section is provided with a first section groove, and the first side of the tail section is provided with a tail section groove, so that the hinge section is in a broken line shape as a whole;
[0009] When the subcutaneous expansion forceps are not opened, the first section groove of one of the first sections is at least partially covered by the other first section, and the tail section groove of one of the tail sections is at least partially covered by the other tail section.
[0010] Preferably, the groove surface of the first section groove close to the hinge shaft is the first section groove surface, and the groove surface of the tail section groove close to the hinge shaft is the tail section groove surface;
[0011] For the same pliers body, the first section groove surface and the tail section groove surface are parallel to each other, so that the first section groove surface and the tail section groove surface are equal width sections; the hinge axis is located at the width center of the equal width section;
[0012] When the two pliers bodies rotate relative to each other, the two equal-width sections can be completely opposite to each other.
[0013] Preferably, the first section groove and the tail section groove are both V-shaped.
[0014] Preferably, the groove bottoms of the first section groove and the tail section groove are smoothly transitioned.
[0015] Preferably, the pliers head section comprises a pliers head body, the pliers teeth and a right-angled rib, the pliers teeth are arranged on a first side of the pliers head body, and the right-angled rib is arranged on a second side of the pliers head body.
[0016] Preferably, the clamp body and the hinge shaft are both made of medical stainless steel.
[0017] Compared with the prior art, the utility model has achieved the following technical effects:
[0018] By changing the shape of the hinged section, the hinged section is made to be in a broken line shape as a whole. As the subcutaneous expansion forceps are opened, the first section groove on the first section gradually deviates from the other first section, and the tail section groove on the tail section gradually deviates from the other tail section. The overlapping area of the two first sections near the hinge axis increases and the non-overlapping area decreases, and the overlapping area of the two tail sections near the hinge axis increases and the non-overlapping area decreases. Therefore, during the opening process, the subcutaneous expansion forceps of the utility model can reduce the width near the hinge axis to achieve the goal of minimally invasive surgery. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 A schematic diagram of an open state of the subcutaneous expansion forceps according to an embodiment of the utility model;
[0021] Figure 2 This is a schematic diagram of another open state of the subcutaneous expansion forceps according to an embodiment of the utility model;
[0022] Figure 3 A schematic diagram of a hemostatic forceps used for subcutaneous expansion in the prior art;
[0023] Explanation of the reference numerals: 1-subcutaneous expansion forceps; 10-forceps body; 20-first side; 30-second side; 11-forceps head section; 12-hinge section; 13-forceps handle section; 111-forceps head body; 112-forceps teeth; 121-first section; 122-first section groove; 123-tail section; 124-tail section groove; 125-first section groove surface; 126-tail section groove surface; 127-equal width section; 2-hemostatic forceps. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Reference Figure 1 , Figure 2 The present embodiment provides a subcutaneous expansion forceps 1, comprising two forceps bodies 10, wherein the forceps body 10 comprises a forceps head section 11, an articulated section 12 and a forceps handle section 13 connected in sequence, and the articulated sections 12 of the two forceps bodies 10 are hingedly connected via an articulated shaft.
[0026] The articulated section 12 includes a first section 121 and a tail section 123. The first section 121 is located on the side of the articulated axis close to the pliers head section 11, and the tail section 123 is located on the side of the articulated axis close to the pliers handle. The side of the pliers body 10 where the pliers teeth 112 are provided is the first side 20, and the side opposite to the first side 20 is the second side 30. The second side 30 of the first section 121 is provided with a first section groove 122, and the first side 20 of the tail section 123 is provided with a tail section groove 124, so that the articulated section 12 is in a broken line shape as a whole. When the subcutaneous expansion forceps 1 are not opened, the first section groove 122 of one first section 121 is at least partially covered by another first section 121, and the tail section groove 124 of one tail section 123 is at least partially covered by another tail section 123.
[0027] The working principle of the subcutaneous expansion forceps 1 of this embodiment is as follows:
[0028] When the subcutaneous expansion forceps 1 are not opened, the parts of the two first sections 121 close to the hinge axis have a certain non-overlapping area, that is, the area of the first section groove 122 in the first side 20 of the first section 121 facing the other first section 121; the parts of the two tail sections 123 close to the hinge axis have a certain non-overlapping area, that is, the area of the tail section groove 124 in the second side 30 of the tail section 123 facing the other tail section 123.
[0029] As the subcutaneous expansion forceps 1 are opened, the first section groove 122 on the first section 121 gradually deviates from the other first section 121, and the tail section groove 124 on the tail section 123 gradually deviates from the other tail section 123. The overlapping area of the two first sections 121 close to the articulation axis increases, the non-overlapping area decreases, and the width of the two first sections 121 close to the articulation axis decreases; the overlapping area of the two tail sections 123 close to the articulation axis increases, the non-overlapping area decreases, and the width of the two tail sections 123 close to the articulation axis decreases.
[0030] Therefore, during the opening process, the subcutaneous expansion forceps 1 of this embodiment can reduce the width near the hinge axis to achieve the goal of minimally invasive surgery.
[0031] As a possible example, in this embodiment, the groove surface of the first section groove 122 close to the hinge axis is the first section groove surface 125, and the groove surface of the tail section groove 124 close to the hinge axis is the tail section groove surface 126. For the same pliers body 10, the first section groove surface 125 and the tail section groove surface 126 are approximately parallel to each other, so that the first section groove surface 125 and the tail section groove surface 126 are approximately equal width sections 127. The hinge axis is located at the center of the equal width sections 127. When the two pliers bodies 10 rotate relative to each other, the two equal width sections 127 can be completely opposite (refer to Figure 2 ). When the two equal-width sections 127 are bent and facing each other, the width near the hinge axis is the minimum value.
[0032] As a possible example, in this embodiment, the first section groove 122 and the tail section groove 124 are both V-shaped. However, the actual implementation is not limited thereto. For example, the cross-sections of the first section groove 122 and the tail section groove 124 can both be trapezoidal.
[0033] As a possible example, in this embodiment, in order to facilitate cleaning, the bottoms of the first section groove 122 and the tail section groove 124 are preferably smoothly transitioned.
[0034] As a possible example, in this embodiment, the clamp head section 11 includes a clamp head body 111, clamp teeth 112 and a right-angled rib, the clamp teeth 112 are arranged on the first side 20 of the clamp head body 111, and the right-angled rib is arranged on the second side 30 of the clamp head body 111.
[0035] It should be noted that, in order to prevent the articulated shaft from scratching the patient's tissue, the articulated shaft is usually only disposed between the two clamp bodies 10 and does not penetrate the clamp bodies 10 , so the articulated shaft is not shown in the figure.
[0036] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A subcutaneous expansion forceps, characterized in that: It comprises two pliers bodies, wherein the pliers bodies comprise a pliers head section, a hinge section and a pliers handle section which are connected in sequence, and the hinge sections of the two pliers bodies are hingedly connected via a hinge shaft; The articulated section includes a head section and a tail section, wherein the head section is located on a side of the articulated shaft close to the pliers head section, and the tail section is located on a side of the articulated shaft close to the pliers handle; The side of the pliers body where the pliers teeth are arranged is a first side, and the side opposite to the first side is a second side; The second side of the first section is provided with a first section groove, and the first side of the tail section is provided with a tail section groove, so that the hinge section is in a broken line shape as a whole; When the subcutaneous expansion forceps are not opened, the first section groove of one of the first sections is at least partially covered by the other first section, and the tail section groove of one of the tail sections is at least partially covered by the other tail section.
2. The subcutaneous expansion forceps according to claim 1, characterized in that: The groove surface of the first section groove close to the hinge shaft is the first section groove surface, and the groove surface of the tail section groove close to the hinge shaft is the tail section groove surface; For the same pliers body, the first section groove surface and the tail section groove surface are parallel to each other, so that the first section groove surface and the tail section groove surface are equal width sections; the hinge axis is located at the width center of the equal width section; When the two pliers bodies rotate relative to each other, the two equal-width sections can be completely opposite to each other.
3. The subcutaneous expansion forceps according to claim 2, characterized in that: The first section groove and the tail section groove are both V-shaped.
4. The subcutaneous expansion forceps according to claim 3, characterized in that: The groove bottoms of the first section groove and the tail section groove are smoothly transitioned.
5. The subcutaneous expansion forceps according to claim 1, characterized in that: The pliers head section comprises a pliers head body, pliers teeth and a right-angled rib, wherein the pliers teeth are arranged on a first side of the pliers head body, and the right-angled rib is arranged on a second side of the pliers head body.
6. The subcutaneous expansion forceps according to claim 1, characterized in that: The materials of the clamp body and the hinge shaft are both medical stainless steel.